Add multiple grant clarification to description.
Don't grant multiple_grant badges multiple times for the same post.
Fix email code & tests
Merge pull request #2478 from riking/patch-email

Fix email code & tests
Merge pull request #2479 from vikhyat/badge-system

Badge system updates
don't let topic-progress be selected
use modern/current vendor prefixes
FEATURE: Trust level 3 promotion and demotion. Job is disabled for now.
turns out we had a mixin for unselectable
making menu highlights consistent
Merge pull request #2481 from awesomerobot/master

making menu highlights consistent
add sexy sexy download icon to expanded post images
x is no sexy, &times; is yes sexy