* Add moderator role and add pundit policies for admin actions
* Add rake task for turning user into mod and revoking it again
* Fix handling of unauthorized exception
* Deliver new report e-mails to staff, not just admins
* Add promote/demote to admin UI, hide some actions conditionally
* Fix unused i18n
* Simplify admin/reports controller filtering for index
* Rename parameter to resolved
* Fix issue where reports view could not access filter_link_to
* Add coverage for admin/reports controller
* DRY up resolution of related reports for target account
* Clean up admin/reports routes
* Add Report#statuses method
* DRY up current account action taken params
* Rubocop styles
Eugen Rochko