Added support for images from path instead of using imageNamed:
URI Scheme for images

Added tests for image property types
Added uri scheme for images (caches://, documents://, bundle://)
changed [schema host] to [schema path] for more complex paths
changed bundle checking to be more deliberate
changed fileURL
allow main bundle only for now
Using more robust scheme/path checking instead of NSURL
range optimization
optimization for removing excess else if
removed bad tests
Merge pull request #15 from flippinjoe21/master

Added support for images from documents and caches directory as well as from bundle