Decreased severity of camera jerkiness during real-time playback.
Completed transition to new hero levels.
A few fixes to WorldMapView to handle authentication and hiding the parts that aren't done yet.
Propagated i18n.
IE9 compat: css fixes

Linking to bless-brunch git for fixes that blocked bless from splitting
app.css into multiple files to address IE9 limits.

sass-brunch version update fixes problems during the css file-splitting
that were messing up nested @media queries.
Extended Achievements to support earning heroes, items, levels, and gems. Fixed a few Achievement bugs.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	app/locale/el.coffee
Merge remote-tracking branch 'upstream/master'