* 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
* Replace will_paginate with kaminari
* Use #page instead of #paginate in controllers
* Replace will_paginate.page_gap with pagination.truncate in i18n
* Customize kaminari views to match prior styles
* Set kaminari options to match prior behavior
* Replace will_paginate with paginate in views