Update composer description

composer.json

 {
     "name": "jenssegers/mongodb",
-    "description": "A MongoDB based Eloquent model and Query builder for Laravel 4",
-    "keywords": ["laravel","eloquent","mongodb","mongo","database","model"],
+    "description": "A MongoDB based Eloquent model and Query builder for Laravel (Moloquent)",
+    "keywords": ["laravel","eloquent","mongodb","mongo","database","model","moloquent"],
     "homepage": "https://github.com/jenssegers/laravel-mongodb",
     "authors": [
         {