Closes #239 Optimize Actor drawing

Also fixed some bugs in Camera
Also partial work on CollisionMaps
Closes #241 Collision types refactored to be more clear
Fix weirdness in loader and explicitly fire 100 percent progress
Update LICENSE.md

Update year
Update README.md

Update year
Update README.md

Fix code snippet
Update README.md

Better, faster, stronger.
Update README.md

Spelling.
Update README.md

Package installs
Closes #244 Custom method action implemented
Close #33 COLLISION MAPS!!!
Merge pull request #247 from excaliburjs/dev-erik

Merge actor draw optimization, collision refactor, new action, and collision maps
Brought back acceleration
Update theme json for docs
Update broken yuidoc comments
Fix bug where Actors assume cameras exist
Update for potential final release
Merge master into release candidate
Update dist
Merge pull request #249 from excaliburjs/dev-erik

Merge release candidate for testing before release