fix bower.json omissions

Author: jamestalmage

bower.json

@@ -20,7 +20,10 @@
   "main": "dist/angularfire.js",
   "ignore": [
     "**/*",
-    "!dist/angularfire.js"
+    "!dist/*.js",
+    "!*.md",
+    "!*.txt",
+    "!index.js"
   ],
   "dependencies": {
     "angular": "1.3.x || 1.4.x",