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.
Update ca.coffee
Merge pull request #1607 from enricpc/patch-1

Update ca.coffee