chore(package): update http-server to version 0.12.2

Closes #510

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
     "can-simple-observable": "^2.0.0",
     "can-test-helpers": "^1.1.2",
     "can-type": "<2.0.0",
-    "http-server": "^0.11.0",
+    "http-server": "^0.12.2",
     "jquery": "2.x - 3.x",
     "jshint": "^2.9.4",
     "steal": "^2.2.1",