Refactoring: Removed some HTML5 relicts.
Refactoring: Removed obsolete code and #import.
Refactoring: more use of CCBPublisherTargetType instead of int.
Cancelling publishing shouldn't result in a warning flag on a sprite sheet being processed.
Some extra logging and suggestion how to fix if the cocos2d_version.txt file could not be found.
Merge pull request #459 from NickyWeber/feature/abort_publishing_tidy_up

Feature/abort publishing tidy up
Merge pull request #460 from NickyWeber/feature/cocos2dupdater_error_logging_improvements

Some extra logging and suggestion how to fix if the cocos2d_version.txt ...