Merge pull request #41 from mono/master

Fix for multiple issues involving layers with tint, fade and artifacts for iOS.
fixed again

fps_Images - device is case sensitive.
Monomac support.
MonoMac support changes

Changes to get Monomac to build.
fix for the monomac launcher.
name space fix for NSAutoReleasePool
fixed bad copy and replace

the .fnt extension is required for the font config files.
Add MonoMac specific plist to MacOS test project.  This gets the system to initialize and create the Game object but still there are internal errors.