Badges, poll and french Translation

New Badges system
New string in the poll plugin + change the term "poll option"
Re-add some empty strings (like notifications.title)
And updates
Poll - Topic Term

Use topic instead of thread to keep the same term for the user.
Update ember-cloaking for latest fixes/tweaks
Trivial typo
FEATURE: Trust level 4 abilities: pin/unpin, close, archive, make invisible, split/merge topic
clarify invite copy
Add s3_backup_config_warning

Note that only one of the two warnings can be shown, because they are checked in the same method.
remove SSH key generation, not for beginners
fixing private category badges and mobile header logo
fixing private category badges and mobile header logo
Merge pull request #2140 from awesomerobot/master

fixing private category badges and mobile header logo
FEATURE: notify users when linked

Extract out PostAlerter from observer
Track outgoing post links correctly
Notify users they are linked when linked
BUGFIX: Don't resolve oneboxes when cooking

Defer to post save job
require rbtrace in development cause it is handy
use 1.9 syntax
FIX: broken specs after new link alerting code
Dutch translation updated
Dutch translation updated
Merge pull request #2142 from sanderdatema/patch-5

Dutch translation updated
Merge pull request #2135 from Onaldanm/poll-badge-fr

Translation: Badges, poll and french updates