Install laravel 5.2

composer.json

@@ -6,7 +6,7 @@
     "type": "project",
     "require": {
         "php": ">=5.5.9",
-        "laravel/framework": "5.1.*"
+        "laravel/framework": "5.2.*"
     },
     "require-dev": {
         "fzaninotto/faker": "~1.4",
@@ -47,5 +47,7 @@
     },
     "config": {
         "preferred-install": "dist"
-    }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
 }