* upstream/develop: (60 commits)
whoops
whoops
DM timeline: stream new statuses
update-japanese-translation
Add actual user search.
incorporate most translation changes from MR 368
update french translation
Always show dm panel.
Add direct message tab.
api service url
remove deploy stage
remove deploy stage
updated and completed German translation
On logout switch to public timeline.
minor modification of Chinese translation
update Chinese translation
Add Chinese language
Fix posting.
Put oauth text into description.
Display OAuth login on login form button.
...
The locale can now be configured in settings and is stored in
Vuex. The changes are applied immidiately after selection. The list of
languages is taken from the messages file, which contains all the
available locales (and a new value, `interfaceLanguage`, to control
the translation of this option in the options menu)
Closes#36
