add fcm support

Author: daim2k5

composer.json

@@ -1,7 +1,7 @@
 {
-    "name": "davibennun/laravel-push-notification",
+    "name": "daim2k5/laravel-push-notification",
     "description": "Laravel package to send push notifications to mobile devices (apns, gcm)",
-    "keywords": ["apns","gcm","push","notification", "laravel"],
+    "keywords": ["apns","gcm","fcm","push","notification", "laravel"],
     "authors": [
         {
             "name": "DaviBenNun",
@@ -11,7 +11,7 @@
     "require": {
         "php": ">=5.3.0",
         "illuminate/support": "5.*",
-        "sly/notification-pusher": "2.*"
+        "blablacar/notification-pusher": "2.*"
     },
     "autoload": {
         "psr-0": {