Updates bower file to correct ignore path for source

anshulguleria · anshulguleria · commit 530e9c93b2fc · 2015-08-27T11:47:47.000+05:30
It was ignoring "src" folder which has been changed to "source" so added source in bower ignores. Fix #455
diff --git a/bower.json b/bower.json
@@ -3,7 +3,7 @@
   "main": "./animate.css",
   "ignore": [
     ".*",
-    "src",
+    "source",
     "*.yml",
     "Gemfile",
     "Gemfile.lock",
