Update level 3 to make it easier to play.
Fine tune level 3
Merge pull request #120 from jocelynlih/paul

XCode 6.0 GM broke playgrounds targeted at OSX. Some of our playgrounds...
level 4
Add level 4 to the gamescene outdoor logic
Merge pull request #121 from jocelynlih/jocelynUpdateLevel34

update level3 and 4
Adding more platforms in Level 2 and Fixing bug where fourth level is not enabled and not showing score in game over scene as score are not recorded
Merge pull request #122 from jocelynlih/level-2-improvements

Adding more platforms in Level 2 and Fixing bug where fourth level is not enabled
level 4 is fine tuned and close #115
Merge pull request #123 from jocelynlih/jocelynUpdateLevel34

level 4 is fine tuned and close #115
platform playground
Merge pull request #124 from jocelynlih/jocelynAddPlatformPlayground

platform playground