Sped up "real-time" playback for the maze levels.
Added WorldMapView ambient sounds.
making the spikes appear above the walls
manually resolving merge conflict
Changed default language from JavaScript to Python. Fixed a few InventoryView tests. Adjusted maze real-time playback speed factor code.
simplifying the homepage
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.
Update ca.coffee
Extended Achievements to support earning heroes, items, levels, and gems. Fixed a few Achievement bugs.
Fixed jsondiffpatch bower version at 0.1.8, since somewhere around 0.1.10 through 0.1.17 moved the main bower script and it doesn't seem to work.
Merge pull request #1605 from enricpc/patch-1

Update ca.coffee
Recommented a couple ca.coffee section headers that aren't started yet.
Stopped locking levels for now, since the achievements aren't quite unlocking them correctly.