iOS Template Changes

Updated iOS template to do a bit more and actually do something a bit
more fun for the user. While covering a few of the key areas.
Merge pull request #469 from cocojoe/develop-v3

iOS Template Changes
Fixes issue with positioning of children when changing a parents content size or content size type
Merge branch 'develop-v3' of https://github.com/cocos2d/cocos2d-iphone into develop-v3