Fix mastodon#2108 - Fix gif uploads (mastodon#2171)

* Fix mastodon#2108 - Fix gif uploads
Add specs for media attachment gifv conversion

* Add ffmpeg to travis

* Make travis install ffmpeg, not libav

* Switch travis to trusty

Fixed hungarian translation (mastodon#2158)

Do not display "reset password" in admin UI for remote accounts (mast…

…odon#1960)

Merge branch 'matteoaquila-master'

Do not store last visited URL from API controllers (mastodon#1330)

Sign-in redirects you back to last visited URL, but in case of API requests,
this sometimes redirected users to an API URL that, of course, greeted them
with an {"error":"The access token is invalid"}

Merge pull request mastodon#1146 from tootsuite/fix-object-type-nil-e…

…xception

Fix nil#object_type error

Remove bios from blocked users list, filter out broken entries from A…

…PI response

Fix statsd null backend not being initialized properly

Fix live status removal from public/hashtag channels

Improve how errors are displayed in the UI