Merge pull request #395 from SabreCat/seasonal

fix(seasonal): Leslie link
grunt full
Incorrect grammar in Vice 2 quest notes

"makes it's way to Mt. Habitica" to "makes its way to Mt. Habitica"
Merge pull request #396 from jamesleonis/develop

Incorrect grammar in Vice 2 quest notes
HabitRPG/habitrpg#3260 Buttonless habit full width

When the user has neither a plus nor a minus button on
one of their habits, the habit’s title will now span the entire
width of the task div instead of having a gap to the left.
ran grunt to compile coffeescript
chore(i18n): update locales
Brought in groups.json from original branch
feat(event): Winter NPCs
chore(grunt): grunt full

Also flips Ian NPC to standard spritesmith instead of animated GIF.
feat(event): Winter Wonderland 2015 gear
fix(event): head, not helm
feat(event): Wintery Hair Colors

Also removes an accidental duplication of a prior hair resource.
Merge pull request #400 from SabreCat/winter2015/npcs

Winter 2015 NPCs
Merge pull request #401 from SabreCat/winter2015/gear

Winter Wonderland 2015 Gear
Merge pull request #402 from SabreCat/winter2015/hair

Wintery Hair Colors for Wonderland 2015
chore(grunt): grunt full
feat(news): Promo images
chore(grunt): grunt full
Merge pull request #403 from SabreCat/Bailey

Promo art