Do automate Xcode project settings update, Xcode 4.6.
Add NSObject superclass to MF_Base64Codec to squash Xcode 4.6 warning.
Merge pull request #4 from kevboh/master

Fix for issue #3, "no superclass" warning in Xcode 4.6
Fix for issue #2: extra 0 were padded when padding = symbols were present

Signed-off-by: Dave Poirier <ekscrypto@gmail.com>
Merge branch 'master' of github.com:ekscrypto/Base64