Merge pull request #131 from eonarheim/dev-erik

Merge meet, follow, particle emitters, and color fixes
Merge pull request #132 from eonarheim/dev-erik

Created Particle Emitter Testing Utility
Add Excalibur VS2013 solution with test project (use Chutzpah test runner in VS)
Merge branch 'master' of github.com:eonarheim/Excalibur into dev-erik
Add log specs
Merge branch 'master' of github.com:eonarheim/Excalibur into dev-erik
Fix test run on gruntfile
Close #137 Game.extend now supported