Renamed rubocop custom rules file + Hound config update

.hound.yml

@@ -3,6 +3,6 @@ scss:
   config_file: .scss-lint.yml
 ruby:
   enabled: true
-  config_file: .ruby-style.yml
+  config_file: .rubocop.yml
 javascript:
   enabled: false

NEWS.md

@@ -3,6 +3,7 @@
 * Now the owner of the dataset is going to receive an email when the synchronization fails hits the max allowed number [#3501](https://github.com/CartoDB/cartodb/issues/3501)
 * If the dataset don't have an associated map we avoid to use the zoom property [#5447](https://github.com/CartoDB/cartodb/issues/5447)
 * Display custom attribution of layers in the editor and embeds [#5388](https://github.com/CartoDB/cartodb/pull/5388)
+* Adapted Hound configuration to use default .rubocop.yml file so we can have [Rubocop](https://github.com/bbatsov/rubocop) style checks integrated at Sublime Text via [SublimeLinter](http://sublimelinter.readthedocs.org/en/latest/)
 
 3.11.0 (2015-09-09)
 -------------------