Update composer.json keywords for Packagist

composer.json

@@ -3,7 +3,7 @@
     "license": "MIT",
     "description": "php error handling for cool kids",
     "version": "1.0.1",
-    "keywords": ["library", "error", "handling", "exception", "silex-provider", "whoops"],
+    "keywords": ["library", "error", "handling", "exception", "silex-provider", "whoops", "zf2"],
     "homepage": "https://github.com/filp/whoops",
     "authors": [
         {

composer.lock

@@ -1,5 +1,9 @@
 {
-    "hash": "882b0f611cc11edf397fea43af9627f4",
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file"
+    ],
+    "hash": "321e44c8b17cbb702bbfcb8c749ddc71",
     "packages": [
 
     ],