iPhone5 should default to iPhoneRetina and then to Default package

[GoogleCodeExporter]

When loading resources, iPhone5 should check the paths like this:
- iPhone5 directory
- iPhoneRetina directory
- Default

This will save a lot of copying and duplicating of resources. iPhone5 will only 
override the backgrounds and at most some display-size dependant elements. Most 
resources will be always same for iPhone4/4s and iPhone5 anyway.

Original issue reported on code.google.com by godexsoft on 21 Dec 2012 at 6:28

[GoogleCodeExporter]

ok starting this now

Original comment by godexsoft on 22 Dec 2012 at 6:21

• Changed state: Progress

[GoogleCodeExporter]

Done in rev. 582

Original comment by godexsoft on 22 Dec 2012 at 7:10

• Changed state: Fixed