fix to issue #367 - unknown selector on OSX 10.8 and less
Merge pull request #369 from bhpcode/master

Fix #367 (unknown selector on OSX 10.8 and less)
Fixed a issue with NAN (/0) when there is no image width or height.
Merge pull request #379 from duncandee/master

Fixed a issue with NAN (/0) when there is no image width or height.
Auto-updated project for Xcode 6.