Add Laravel 5.1 support on and update branch alias to 4.1

Author: vinkla

composer.json

@@ -16,19 +16,19 @@
     ],
     "require": {
         "php": ">=5.4.0",
-        "illuminate/database": "5.0.*",
-        "illuminate/console": "5.0.*",
-        "illuminate/contracts": "5.0.*",
-        "illuminate/http": "5.0.*",
-        "illuminate/support": "5.0.*",
-        "illuminate/config": "5.0.*",
+        "illuminate/database": "5.1.*@dev",
+        "illuminate/console": "5.1.*@dev",
+        "illuminate/contracts": "5.1.*@dev",
+        "illuminate/http": "5.1.*@dev",
+        "illuminate/support": "5.1.*@dev",
+        "illuminate/config": "5.1.*@dev",
         "league/oauth2-server": "4.1.*"
     },
     "require-dev": {
-        "orchestra/testbench": "3.0.*",
+        "orchestra/testbench": "3.1.*@dev",
         "phpunit/phpunit": "~4.0",
         "phpspec/phpspec": "~2.0",
-        "mockery/mockery": "~0.8",
+        "mockery/mockery": "~0.9",
         "henrikbjorn/phpspec-code-coverage": "~1.0"
     },
     "autoload": {
@@ -43,7 +43,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "4.0.x-dev"
+            "dev-master": "4.1-dev"
         }
     },
     "minimum-stability": "dev",