Fix dependency

With this new 5.0 branch, there is some issues on composer install. Either keep a 4.3.* branch or change this ?

composer.json

@@ -5,7 +5,7 @@
 	"license": "MIT",
 	"type": "project",
 	"require": {
-		"laravel/framework": "4.3.*"
+		"laravel/framework": "~5.0"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "~4.0"