diff --git a/package-lock.json b/package-lock.json
index 63ead8b..c010a69 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@buttonwallet/blockchain-ts-wallet-core",
-  "version": "0.0.5",
+  "version": "0.0.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2360,6 +2360,15 @@
       "integrity": "sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g==",
       "dev": true
     },
+    "agentkeepalive": {
+      "version": "3.5.2",
+      "resolved": "https://registry.npmjs.org/agentkeepalive/-/agentkeepalive-3.5.2.tgz",
+      "integrity": "sha512-e0L/HNe6qkQ7H19kTlRRqUibEAwDK5AFk6y3PtMsuut2VAH6+Q4xZml1tNDJD7kSAyqmbG/K08K5WEJYtUrSlQ==",
+      "dev": true,
+      "requires": {
+        "humanize-ms": "^1.2.1"
+      }
+    },
     "aggregate-error": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/aggregate-error/-/aggregate-error-3.0.1.tgz",
@@ -2455,6 +2464,12 @@
         "default-require-extensions": "^1.0.0"
       }
     },
+    "aproba": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
+      "integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==",
+      "dev": true
+    },
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -3455,11 +3470,48 @@
       "integrity": "sha512-3U5kUA5VPsRUA3nofm/BXX7GVHKfxz0hOBAPxXrIvHzlDRkQVqEn6yi8QJegxl4LzOHLdvb7XF5dVawa/VVYBg==",
       "dev": true
     },
+    "builtins": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/builtins/-/builtins-1.0.3.tgz",
+      "integrity": "sha1-y5T662HIaWRR2zZTThQi+U8K7og=",
+      "dev": true
+    },
     "bytes": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
       "integrity": "sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg=="
     },
+    "cacache": {
+      "version": "12.0.4",
+      "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.4.tgz",
+      "integrity": "sha512-a0tMB40oefvuInr4Cwb3GerbL9xTj1D5yg0T5xrjGCGyfvbxseIXX7BAO/u/hIXdafzOI5JC3wDwHyf24buOAQ==",
+      "dev": true,
+      "requires": {
+        "bluebird": "^3.5.5",
+        "chownr": "^1.1.1",
+        "figgy-pudding": "^3.5.1",
+        "glob": "^7.1.4",
+        "graceful-fs": "^4.1.15",
+        "infer-owner": "^1.0.3",
+        "lru-cache": "^5.1.1",
+        "mississippi": "^3.0.0",
+        "mkdirp": "^0.5.1",
+        "move-concurrently": "^1.0.1",
+        "promise-inflight": "^1.0.1",
+        "rimraf": "^2.6.3",
+        "ssri": "^6.0.1",
+        "unique-filename": "^1.1.1",
+        "y18n": "^4.0.0"
+      },
+      "dependencies": {
+        "y18n": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+          "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+          "dev": true
+        }
+      }
+    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
@@ -4127,6 +4179,20 @@
       "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.2.tgz",
       "integrity": "sha512-Mw+adcfzPxcPeI+0WlvRrr/3lGVO0bD75SxX6811cxSh1Wbxx7xZBGK1eVtDf6si8rg2lhnUjsVLMFMfbRIuwA=="
     },
+    "copy-concurrently": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/copy-concurrently/-/copy-concurrently-1.0.5.tgz",
+      "integrity": "sha512-f2domd9fsVDFtaFcbaRZuYXwtdmnzqbADSwhSWYxYB/Q8zsdUUFMXVRwXGDMWmbEzAn1kdRrtI1T/KTFOL4X2A==",
+      "dev": true,
+      "requires": {
+        "aproba": "^1.1.1",
+        "fs-write-stream-atomic": "^1.0.8",
+        "iferr": "^0.1.5",
+        "mkdirp": "^0.5.1",
+        "rimraf": "^2.5.4",
+        "run-queue": "^1.0.0"
+      }
+    },
     "copy-descriptor": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/copy-descriptor/-/copy-descriptor-0.1.1.tgz",
@@ -4562,6 +4628,12 @@
       "integrity": "sha1-IegLK+hYD5i0aPN5QwZisEbDStI=",
       "dev": true
     },
+    "cyclist": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/cyclist/-/cyclist-1.0.1.tgz",
+      "integrity": "sha1-WW6WmP0MgOEgOMK4LW6xs1tiJNk=",
+      "dev": true
+    },
     "cz-conventional-changelog": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cz-conventional-changelog/-/cz-conventional-changelog-2.1.0.tgz",
@@ -5075,6 +5147,18 @@
       "resolved": "https://registry.npmjs.org/duplexer3/-/duplexer3-0.1.4.tgz",
       "integrity": "sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI="
     },
+    "duplexify": {
+      "version": "3.7.1",
+      "resolved": "https://registry.npmjs.org/duplexify/-/duplexify-3.7.1.tgz",
+      "integrity": "sha512-07z8uv2wMyS51kKhD1KsdXJg5WQ6t93RneqRxUHnskXVtlYYkLqM0gqStQZ3pj073g687jPCHrqNfCzawLYh5g==",
+      "dev": true,
+      "requires": {
+        "end-of-stream": "^1.0.0",
+        "inherits": "^2.0.1",
+        "readable-stream": "^2.0.0",
+        "stream-shift": "^1.0.0"
+      }
+    },
     "ecc-jsbn": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz",
@@ -5134,6 +5218,26 @@
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
       "integrity": "sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k="
     },
+    "encoding": {
+      "version": "0.1.13",
+      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
+      "integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
+      "dev": true,
+      "requires": {
+        "iconv-lite": "^0.6.2"
+      },
+      "dependencies": {
+        "iconv-lite": {
+          "version": "0.6.2",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.2.tgz",
+          "integrity": "sha512-2y91h5OpQlolefMPmUlivelittSWy0rP+oYVpn6A7GwVHNE8AWzoYOBNmlwks3LobaJxgHCYZAnyNo2GgpNRNQ==",
+          "dev": true,
+          "requires": {
+            "safer-buffer": ">= 2.1.2 < 3.0.0"
+          }
+        }
+      }
+    },
     "end-of-stream": {
       "version": "1.4.4",
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
@@ -5264,6 +5368,12 @@
         }
       }
     },
+    "err-code": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/err-code/-/err-code-1.1.2.tgz",
+      "integrity": "sha1-BuARbTAo9q70gGhJ6w6mp0iuaWA=",
+      "dev": true
+    },
     "errno": {
       "version": "0.1.7",
       "resolved": "https://registry.npmjs.org/errno/-/errno-0.1.7.tgz",
@@ -5337,6 +5447,15 @@
       "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-4.2.8.tgz",
       "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w=="
     },
+    "es6-promisify": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/es6-promisify/-/es6-promisify-5.0.0.tgz",
+      "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
+      "dev": true,
+      "requires": {
+        "es6-promise": "^4.0.3"
+      }
+    },
     "es6-symbol": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/es6-symbol/-/es6-symbol-3.1.3.tgz",
@@ -6012,6 +6131,12 @@
         "pend": "~1.2.0"
       }
     },
+    "figgy-pudding": {
+      "version": "3.5.2",
+      "resolved": "https://registry.npmjs.org/figgy-pudding/-/figgy-pudding-3.5.2.tgz",
+      "integrity": "sha512-0btnI/H8f2pavGMN8w40mlSKOfTK2SVJmBfBeVIj3kNw0swwgzyRq0d5TJVOwodFmtvpPeWPN/MCcfuWF0Ezbw==",
+      "dev": true
+    },
     "figures": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/figures/-/figures-2.0.0.tgz",
@@ -6141,6 +6266,16 @@
         "resolve-dir": "^1.0.1"
       }
     },
+    "flush-write-stream": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/flush-write-stream/-/flush-write-stream-1.1.1.tgz",
+      "integrity": "sha512-3Z4XhFZ3992uIq0XOqb9AreonueSYphE6oYbpt5+3u06JWklbsPkNv3ZKkP9Bz/r+1MWCaMoSQ28P85+1Yc77w==",
+      "dev": true,
+      "requires": {
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.3.6"
+      }
+    },
     "fn-name": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/fn-name/-/fn-name-2.0.1.tgz",
@@ -6254,6 +6389,18 @@
         "minipass": "^2.6.0"
       }
     },
+    "fs-write-stream-atomic": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/fs-write-stream-atomic/-/fs-write-stream-atomic-1.0.10.tgz",
+      "integrity": "sha1-tH31NJPvkR33VzHnCp3tAYnbQMk=",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "iferr": "^0.1.5",
+        "imurmurhash": "^0.1.4",
+        "readable-stream": "1 || 2"
+      }
+    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -7464,6 +7611,15 @@
       "integrity": "sha512-SEQu7vl8KjNL2eoGBLF3+wAjpsNfA9XMlXAYj/3EdaNfAlxKthD1xjEQfGOUhllCGGJVNY34bRr6lPINhNjyZw==",
       "dev": true
     },
+    "humanize-ms": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/humanize-ms/-/humanize-ms-1.2.1.tgz",
+      "integrity": "sha1-xG4xWaKT9riW2ikxbYtv6Lt5u+0=",
+      "dev": true,
+      "requires": {
+        "ms": "^2.0.0"
+      }
+    },
     "husky": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/husky/-/husky-1.3.1.tgz",
@@ -7584,6 +7740,12 @@
       "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
       "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
     },
+    "iferr": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/iferr/-/iferr-0.1.5.tgz",
+      "integrity": "sha1-xg7taebY/bazEEofy8ocGS3FtQE=",
+      "dev": true
+    },
     "ignore": {
       "version": "5.1.4",
       "resolved": "https://registry.npmjs.org/ignore/-/ignore-5.1.4.tgz",
@@ -7662,6 +7824,12 @@
       "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=",
       "dev": true
     },
+    "infer-owner": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/infer-owner/-/infer-owner-1.0.4.tgz",
+      "integrity": "sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==",
+      "dev": true
+    },
     "inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -7742,6 +7910,12 @@
       "integrity": "sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA==",
       "dev": true
     },
+    "ip": {
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/ip/-/ip-1.1.5.tgz",
+      "integrity": "sha1-vd7XARQpCCjAoDnnLvJfWq7ENUo=",
+      "dev": true
+    },
     "ipaddr.js": {
       "version": "1.9.0",
       "resolved": "https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.0.tgz",
@@ -10143,6 +10317,71 @@
       "integrity": "sha512-c3sIjNUow0+8swNwVpqoH4YCShKNFkMaw6oH1mNS2haDZQqkeZFlHS3dhoeEbKKmJB4vXpJucU6oH75aDYeE9g==",
       "dev": true
     },
+    "make-fetch-happen": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/make-fetch-happen/-/make-fetch-happen-5.0.2.tgz",
+      "integrity": "sha512-07JHC0r1ykIoruKO8ifMXu+xEU8qOXDFETylktdug6vJDACnP+HKevOu3PXyNPzFyTSlz8vrBYlBO1JZRe8Cag==",
+      "dev": true,
+      "requires": {
+        "agentkeepalive": "^3.4.1",
+        "cacache": "^12.0.0",
+        "http-cache-semantics": "^3.8.1",
+        "http-proxy-agent": "^2.1.0",
+        "https-proxy-agent": "^2.2.3",
+        "lru-cache": "^5.1.1",
+        "mississippi": "^3.0.0",
+        "node-fetch-npm": "^2.0.2",
+        "promise-retry": "^1.1.1",
+        "socks-proxy-agent": "^4.0.0",
+        "ssri": "^6.0.0"
+      },
+      "dependencies": {
+        "agent-base": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+          "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
+          "dev": true,
+          "requires": {
+            "es6-promisify": "^5.0.0"
+          }
+        },
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "http-cache-semantics": {
+          "version": "3.8.1",
+          "resolved": "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-3.8.1.tgz",
+          "integrity": "sha512-5ai2iksyV8ZXmnZhHH4rWPoxxistEexSi5936zIQ1bnNTW5VnA85B6P/VpXiRM017IgRvb2kKo1a//y+0wSp3w==",
+          "dev": true
+        },
+        "http-proxy-agent": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-2.1.0.tgz",
+          "integrity": "sha512-qwHbBLV7WviBl0rQsOzH6o5lwyOIvwp/BdFnvVxXORldu5TmjFfjzBcWUWS5kWAZhmv+JtiDhSuQCp4sBfbIgg==",
+          "dev": true,
+          "requires": {
+            "agent-base": "4",
+            "debug": "3.1.0"
+          }
+        },
+        "https-proxy-agent": {
+          "version": "2.2.4",
+          "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-2.2.4.tgz",
+          "integrity": "sha512-OmvfoQ53WLjtA9HeYP9RNrWMJzzAz1JGaSFr1nijg0PVR1JaD/xbJq1mdEIIlxGpXp9eSe/O2LgU9DJmTPd0Eg==",
+          "dev": true,
+          "requires": {
+            "agent-base": "^4.3.0",
+            "debug": "^3.1.0"
+          }
+        }
+      }
+    },
     "makeerror": {
       "version": "1.0.11",
       "resolved": "https://registry.npmjs.org/makeerror/-/makeerror-1.0.11.tgz",
@@ -10469,6 +10708,24 @@
         "minipass": "^2.9.0"
       }
     },
+    "mississippi": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/mississippi/-/mississippi-3.0.0.tgz",
+      "integrity": "sha512-x471SsVjUtBRtcvd4BzKE9kFC+/2TeWgKCgw0bZcw1b9l2X3QX5vCWgF+KaZaYm87Ss//rHnWryupDrgLvmSkA==",
+      "dev": true,
+      "requires": {
+        "concat-stream": "^1.5.0",
+        "duplexify": "^3.4.2",
+        "end-of-stream": "^1.1.0",
+        "flush-write-stream": "^1.0.0",
+        "from2": "^2.1.0",
+        "parallel-transform": "^1.1.0",
+        "pump": "^3.0.0",
+        "pumpify": "^1.3.3",
+        "stream-each": "^1.1.0",
+        "through2": "^2.0.0"
+      }
+    },
     "mixin-deep": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.2.tgz",
@@ -10524,6 +10781,20 @@
       "integrity": "sha512-xV2bxeN6F7oYjZWTe/YPAy6MN2M+sL4u/Rlm2AHCIVGfo2p1yGmBHQ6vHehl4bRTZBdHu3TSkWdYgkwpYzAGSw==",
       "dev": true
     },
+    "move-concurrently": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/move-concurrently/-/move-concurrently-1.0.1.tgz",
+      "integrity": "sha1-viwAX9oy4LKa8fBdfEszIUxwH5I=",
+      "dev": true,
+      "requires": {
+        "aproba": "^1.1.1",
+        "copy-concurrently": "^1.0.0",
+        "fs-write-stream-atomic": "^1.0.8",
+        "mkdirp": "^0.5.1",
+        "rimraf": "^2.5.4",
+        "run-queue": "^1.0.3"
+      }
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -10628,6 +10899,17 @@
       "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==",
       "dev": true
     },
+    "node-fetch-npm": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/node-fetch-npm/-/node-fetch-npm-2.0.4.tgz",
+      "integrity": "sha512-iOuIQDWDyjhv9qSDrj9aq/klt6F9z1p2otB3AV7v3zBDcL/x+OfGsvGQZZCcMZbUf4Ujw1xGNQkjvGnVT22cKg==",
+      "dev": true,
+      "requires": {
+        "encoding": "^0.1.11",
+        "json-parse-better-errors": "^1.0.0",
+        "safe-buffer": "^5.1.1"
+      }
+    },
     "node-forge": {
       "version": "0.8.5",
       "resolved": "https://registry.npmjs.org/node-forge/-/node-forge-0.8.5.tgz",
@@ -12942,27 +13224,6 @@
             "npm-registry-fetch": "^4.0.0"
           }
         },
-        "npm-registry-fetch": {
-          "version": "4.0.2",
-          "bundled": true,
-          "dev": true,
-          "requires": {
-            "JSONStream": "^1.3.4",
-            "bluebird": "^3.5.1",
-            "figgy-pudding": "^3.4.1",
-            "lru-cache": "^5.1.1",
-            "make-fetch-happen": "^5.0.0",
-            "npm-package-arg": "^6.1.0",
-            "safe-buffer": "^5.2.0"
-          },
-          "dependencies": {
-            "safe-buffer": {
-              "version": "5.2.0",
-              "bundled": true,
-              "dev": true
-            }
-          }
-        },
         "npm-run-path": {
           "version": "2.0.2",
           "bundled": true,
@@ -14214,6 +14475,26 @@
         }
       }
     },
+    "npm-package-arg": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/npm-package-arg/-/npm-package-arg-6.1.1.tgz",
+      "integrity": "sha512-qBpssaL3IOZWi5vEKUKW0cO7kzLeT+EQO9W8RsLOZf76KF9E/K9+wH0C7t06HXPpaH8WH5xF1MExLuCwbTqRUg==",
+      "dev": true,
+      "requires": {
+        "hosted-git-info": "^2.7.1",
+        "osenv": "^0.1.5",
+        "semver": "^5.6.0",
+        "validate-npm-package-name": "^3.0.0"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        }
+      }
+    },
     "npm-path": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/npm-path/-/npm-path-2.0.4.tgz",
@@ -14223,6 +14504,29 @@
         "which": "^1.2.10"
       }
     },
+    "npm-registry-fetch": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/npm-registry-fetch/-/npm-registry-fetch-4.0.5.tgz",
+      "integrity": "sha512-yQ0/U4fYpCCqmueB2g8sc+89ckQ3eXpmU4+Yi2j5o/r0WkKvE2+Y0tK3DEILAtn2UaQTkjTHxIXe2/CSdit+/Q==",
+      "dev": true,
+      "requires": {
+        "JSONStream": "^1.3.4",
+        "bluebird": "^3.5.1",
+        "figgy-pudding": "^3.4.1",
+        "lru-cache": "^5.1.1",
+        "make-fetch-happen": "^5.0.0",
+        "npm-package-arg": "^6.1.0",
+        "safe-buffer": "^5.2.0"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+          "dev": true
+        }
+      }
+    },
     "npm-run-path": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/npm-run-path/-/npm-run-path-2.0.2.tgz",
@@ -14492,6 +14796,16 @@
       "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
       "dev": true
     },
+    "osenv": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/osenv/-/osenv-0.1.5.tgz",
+      "integrity": "sha512-0CWcCECdMVc2Rw3U5w9ZjqX6ga6ubk1xDVKxtBQPK7wis/0F2r9T6k4ydGYhecl7YUBxBVxhL5oisPsNxAPe2g==",
+      "dev": true,
+      "requires": {
+        "os-homedir": "^1.0.0",
+        "os-tmpdir": "^1.0.0"
+      }
+    },
     "p-cancelable": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-1.1.0.tgz",
@@ -14655,6 +14969,17 @@
         }
       }
     },
+    "parallel-transform": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/parallel-transform/-/parallel-transform-1.2.0.tgz",
+      "integrity": "sha512-P2vSmIu38uIlvdcU7fDkyrxj33gTUy/ABO5ZUbGowxNCopBq/OoD42bP4UmMrJoPyk4Uqf0mu3mtWBhHCZD8yg==",
+      "dev": true,
+      "requires": {
+        "cyclist": "^1.0.1",
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.1.5"
+      }
+    },
     "param-case": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/param-case/-/param-case-2.1.1.tgz",
@@ -15005,6 +15330,30 @@
       "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==",
       "dev": true
     },
+    "promise-inflight": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/promise-inflight/-/promise-inflight-1.0.1.tgz",
+      "integrity": "sha1-mEcocL8igTL8vdhoEputEsPAKeM=",
+      "dev": true
+    },
+    "promise-retry": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/promise-retry/-/promise-retry-1.1.1.tgz",
+      "integrity": "sha1-ZznpaOMFHaIM5kl/srUPaRHfPW0=",
+      "dev": true,
+      "requires": {
+        "err-code": "^1.0.0",
+        "retry": "^0.10.0"
+      },
+      "dependencies": {
+        "retry": {
+          "version": "0.10.1",
+          "resolved": "https://registry.npmjs.org/retry/-/retry-0.10.1.tgz",
+          "integrity": "sha1-52OI0heZLCUnUCQdPTlW/tmNj/Q=",
+          "dev": true
+        }
+      }
+    },
     "prompt": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/prompt/-/prompt-1.0.0.tgz",
@@ -15083,6 +15432,29 @@
         "once": "^1.3.1"
       }
     },
+    "pumpify": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/pumpify/-/pumpify-1.5.1.tgz",
+      "integrity": "sha512-oClZI37HvuUJJxSKKrC17bZ9Cu0ZYhEAGPsPUy9KlMUmv9dKX2o77RUmq7f3XjIxbwyGwYzbzQ1L2Ks8sIradQ==",
+      "dev": true,
+      "requires": {
+        "duplexify": "^3.6.0",
+        "inherits": "^2.0.3",
+        "pump": "^2.0.0"
+      },
+      "dependencies": {
+        "pump": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/pump/-/pump-2.0.1.tgz",
+          "integrity": "sha512-ruPMNRkN3MHP1cWJc9OWr+T/xDP0jhXYCLfJcBuX54hhfIBnaQmAUMfDcG4DM5UMWByBbJY69QSphm3jtDKIkA==",
+          "dev": true,
+          "requires": {
+            "end-of-stream": "^1.1.0",
+            "once": "^1.3.1"
+          }
+        }
+      }
+    },
     "punycode": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
@@ -16026,6 +16398,15 @@
       "integrity": "sha512-DEqnSRTDw/Tc3FXf49zedI638Z9onwUotBMiUFKmrO2sdFKIbXamXGQ3Axd4qgphxKB4kw/qP1w5kTxnfU1B9Q==",
       "dev": true
     },
+    "run-queue": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/run-queue/-/run-queue-1.0.3.tgz",
+      "integrity": "sha1-6Eg5bwV9Ij8kOGkkYY4laUFh7Ec=",
+      "dev": true,
+      "requires": {
+        "aproba": "^1.1.1"
+      }
+    },
     "rxjs": {
       "version": "6.5.4",
       "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-6.5.4.tgz",
@@ -16819,6 +17200,12 @@
       "integrity": "sha1-7b+JA/ZvfOL46v1s7tZeJkyDGzU=",
       "dev": true
     },
+    "smart-buffer": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.1.0.tgz",
+      "integrity": "sha512-iVICrxOzCynf/SNaBQCw34eM9jROU/s5rzIhpOvzhzuYHfJR/DhZfDkXiZSgKXfgv26HT3Yni3AV/DGw0cGnnw==",
+      "dev": true
+    },
     "snapdragon": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/snapdragon/-/snapdragon-0.8.2.tgz",
@@ -16926,6 +17313,37 @@
         }
       }
     },
+    "socks": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/socks/-/socks-2.3.3.tgz",
+      "integrity": "sha512-o5t52PCNtVdiOvzMry7wU4aOqYWL0PeCXRWBEiJow4/i/wr+wpsJQ9awEu1EonLIqsfGd5qSgDdxEOvCdmBEpA==",
+      "dev": true,
+      "requires": {
+        "ip": "1.1.5",
+        "smart-buffer": "^4.1.0"
+      }
+    },
+    "socks-proxy-agent": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-4.0.2.tgz",
+      "integrity": "sha512-NT6syHhI9LmuEMSK6Kd2V7gNv5KFZoLE7V5udWmn0de+3Mkj3UMA/AJPLyeNUVmElCurSHtUdM3ETpR3z770Wg==",
+      "dev": true,
+      "requires": {
+        "agent-base": "~4.2.1",
+        "socks": "~2.3.2"
+      },
+      "dependencies": {
+        "agent-base": {
+          "version": "4.2.1",
+          "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
+          "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
+          "dev": true,
+          "requires": {
+            "es6-promisify": "^5.0.0"
+          }
+        }
+      }
+    },
     "sodium-native": {
       "version": "2.4.6",
       "resolved": "https://registry.npmjs.org/sodium-native/-/sodium-native-2.4.6.tgz",
@@ -17071,6 +17489,15 @@
         }
       }
     },
+    "ssri": {
+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/ssri/-/ssri-6.0.1.tgz",
+      "integrity": "sha512-3Wge10hNcT1Kur4PDFwEieXSCMCJs/7WvSACcrMYrNp+b8kDL1/0wJch5Ni2WrtwEa2IO8OsVfeKIciKCDx/QA==",
+      "dev": true,
+      "requires": {
+        "figgy-pudding": "^3.5.1"
+      }
+    },
     "stack-trace": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.10.tgz",
@@ -17188,6 +17615,22 @@
         "readable-stream": "^2.0.2"
       }
     },
+    "stream-each": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/stream-each/-/stream-each-1.2.3.tgz",
+      "integrity": "sha512-vlMC2f8I2u/bZGqkdfLQW/13Zihpej/7PmSiMQsbYddxuTsJp8vRe2x2FvVExZg7FaOds43ROAuFJwPR4MTZLw==",
+      "dev": true,
+      "requires": {
+        "end-of-stream": "^1.1.0",
+        "stream-shift": "^1.0.0"
+      }
+    },
+    "stream-shift": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/stream-shift/-/stream-shift-1.0.1.tgz",
+      "integrity": "sha512-AiisoFqQ0vbGcZgQPY1cdP2I76glaVA/RauYR4G4thNFgkTqr90yXTo4LYX60Jl+sIlPNHHdGSwo01AvbKUSVQ==",
+      "dev": true
+    },
     "strict-uri-encode": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz",
@@ -18445,6 +18888,24 @@
         "set-value": "^2.0.1"
       }
     },
+    "unique-filename": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-1.1.1.tgz",
+      "integrity": "sha512-Vmp0jIp2ln35UTXuryvjzkjGdRyf9b2lTXuSYUiPmzRcl3FDtYqAwOnTJkAngD9SWhnoJzDbTKwaOrZ+STtxNQ==",
+      "dev": true,
+      "requires": {
+        "unique-slug": "^2.0.0"
+      }
+    },
+    "unique-slug": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/unique-slug/-/unique-slug-2.0.2.tgz",
+      "integrity": "sha512-zoWr9ObaxALD3DOPfjPSqxt4fnZiWblxHIgeWqW8x7UqDzEtHEQLzji2cuJYQFCU6KmoJikOYAZlrTHHebjx2w==",
+      "dev": true,
+      "requires": {
+        "imurmurhash": "^0.1.4"
+      }
+    },
     "unique-string": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unique-string/-/unique-string-1.0.0.tgz",
@@ -18685,6 +19146,15 @@
         "spdx-expression-parse": "^3.0.0"
       }
     },
+    "validate-npm-package-name": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-name/-/validate-npm-package-name-3.0.0.tgz",
+      "integrity": "sha1-X6kS2B630MdK/BQN5zF/DKffQ34=",
+      "dev": true,
+      "requires": {
+        "builtins": "^1.0.3"
+      }
+    },
     "varuint-bitcoin": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/varuint-bitcoin/-/varuint-bitcoin-1.1.2.tgz",