WIP added libPVRTexTool.a
Added PNG lib to get PVR compression working. Probably going to strip it again.
remove png reader.
Edits to Docs 6-7
Editted documentation X1-X5
Merge pull request #122 from britneyroar/develop

Edits to Docs 6-7
Merge pull request #123 from slembcke/develop

Updating submodules to fix some build issues.
Adds correct header path for physics.
Fixed issue with particles not being exported correctly
Fixes default templates (used by particle systems)
Merge branch 'develop' of https://github.com/apportable/SpriteBuilder into develop

Conflicts:
	SpriteBuilder/SpriteBuilder.xcodeproj/project.pbxproj
Add back in PVR Text Tool
clean memory allocs during PVR conversion.
Fixes issue with particle systems
Merge pull request #125 from jtwigg/develop

Develop
Add project path to demo project
Remove path=Example references from example project.
Adds support for importing ttf-fonts
Merge branch 'develop' of https://github.com/apportable/SpriteBuilder into develop
Fix loss of focus bug. Issue#1