- More documentation/clean up some old docs
- isFirstLoad check on GatherContextEvent
- Instancers no longer crash on empty model
- setIdentity on MatrixTransformStack
- more utilities for TransformStack
- ModelData "nullification"
- New Loader class in charge of loading and compiling everything
- ShaderSources now only loads sources
- ShaderSources is immutable now
- Resolver singleton in charge of managing name resolutions
- ProgramSpecs go through Resolver
- WorldShaderPipeline no longer needs reference to ShaderSources