Initial implementation and tests for CCFile.
Compressed CCFiles.
Encrypted CCFiles using the TEA algorithm.
Adding CGImageSource support to CCFile.
Merge branch 'develop-v4' into ccfile
Finishing CCFile API.
Missed these changes when cherry picking.
Better documentation, add a class method to set the encryption key.
Improved CCFile error handling. Move [CCFile +setEncryptionKey:] to the private header.
Merge pull request #1109 from slembcke/CCFile

CCFile