Matt Jankowski 3a9eb81a80 Admin accounts controller cleanup ()
* Remove unused account_params method in admin/accounts controller

* Introduce AccountFilter to find accounts

* Use AccountFilter in admin/accounts controller

* Use more restful routes admin silence and suspension area

* Add admin/silences and admin/suspensions controllers
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accounts_controller_spec.rb Improve notification model
domain_blocks_controller_spec.rb Improved admin UI
pubsubhubbub_controller_spec.rb Unify collection caching code
reports_controller_spec.rb Admin base controller ()
settings_controller_spec.rb Admin base controller ()
silences_controller_spec.rb Admin accounts controller cleanup ()
suspensions_controller_spec.rb Admin accounts controller cleanup ()