Updated composer.json

composer.json

@@ -5,11 +5,12 @@
     "license": "MIT",
     "require": {
         "php": ">=5.4.0",
-		"symfony/http-foundation": "2.*"
+        "symfony/http-foundation": "~2.1"
     },
     "require-dev": {
-		"league/phpunit-coverage-listener": "~1.0",
-    	"mockery/mockery": "0.8"
+        "phpunit/phpunit": "~4.0",
+        "mockery/mockery": "~0.9",
+        "league/phpunit-coverage-listener": "~1.0"
     },
     "repositories": [
         {
@@ -47,8 +48,17 @@
     },
     "autoload": {
         "psr-4": {
-            "League\\OAuth2\\Server\\": "src/",
+            "League\\OAuth2\\Server\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
             "LeagueTests\\": "tests/"
         }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-v4.0.0-WIP": "4.0-dev"
+        }
     }
 }