Add Vector2f
Setup OpenGL ES 1.1 rendering
Render a textured quad
Add Node class for texttree parser
Add stub classes and methods for texttree parsing texttree nodes
Implement texttree parser
Add Commands class that can set named variables from strings
Add custom command functionality to Commands
Add a set command for changing variables
Add Widget class with layout functionality
Refactor constraints system to become leaner
Add a Box class for linear widget layout
Add a penalty system