Remove support for PHP 5.5.

Author: themrwilliams

.travis.yml

@@ -5,11 +5,10 @@ dist: trusty
 sudo: false
 
 php:
-  - 5.5
   - 5.6
   - 7.0
   - 7.1
-  
+
 env:
   global:
     - DEFAULT=1
@@ -24,7 +23,7 @@ matrix:
       env: PHPSTAN=4 DEFAULT=0
     - php: 7.1
       env: PHPSTAN=5 DEFAULT=0
-      
+
   allow_failures:
     - env: PHPSTAN=5 DEFAULT=0
 

composer.json

@@ -5,11 +5,11 @@
     "type": "cakephp-plugin",
     "license": "MIT",
     "require": {
-        "php": ">=5.5.9",
+        "php": ">=5.6",
         "cakephp/orm": "~3.5"
     },
     "require-dev": {
-        "php": ">=5.5",
+        "php": ">=5.6",
         "phpunit/phpunit": "<6.0",
         "cakephp/cakephp": "~3.5",
         "cakephp/cakephp-codesniffer": "@stable"