Composer fix

Dgame · Dgame · commit 8425b7c1425f · 2016-08-11T15:36:05.000+02:00
diff --git a/composer.json b/composer.json
@@ -4,7 +4,7 @@
     "license": "MIT",
     "type": "library",
     "homepage": "https://github.com/php-time",
-    "Keywords": [
+    "keywords": [
         "Date",
         "Time",
         "Timer",
