Dedicate master branch to 2.x

Author: dkarlovi

composer.json

@@ -16,7 +16,7 @@
         }
     ],
     "require": {
-        "php": "^5.4|^7.0",
+        "php": "^7.1",
         "friendsofsymfony/oauth2-php": "~1.1",
         "symfony/framework-bundle": "~2.8|~3.0|^4.0",
         "symfony/security-bundle": "~2.8|~3.0|^4.0",
@@ -49,7 +49,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.5-dev"
+            "dev-master": "2.0-dev"
         }
     }
 }