remove unneeded reply template
multiple changes:
add specs to check whether user is sender/recipient directly on those objects
add translations for bulk delete
modify templates to add form tags
massive refactoring/rewrite:
use resources for routes when possible
change controller structure to match resources
add trashing functionality
remove unnecessary tests, refactor to match new classes
add translations
split out model methods/scopes into concerns
lots of other stuff i most certainly forgot