Add some new block type constants
add support for y rotation
Optimize by computing sin/cosine once
Try to match some variants (trap door, torch, stair, stems) with varying degrees of success
first draft for java/JOGL block viewer that only renders a rainbow square
Add in logic to render BlenderMeshElements
extract constant on uvSquare coordinate array
extract method on the varous GLPoly fabrications for cube sides
move the sin/cosine calculation into the constructor, and add some special cases for multiples of 90
new ModelViewSetter class helps me keep my alternate viewing solutions co-located
remove some old test textures

Conflicts:
	view3d/src/main/java/com/purplefrog/minecraft/view3d/BlockViewer.java
various rendering options for testing phases of the model interpretation
enable alpha stenciling (not translucency)
make some model extractors static
new blocksPerData function for examining block variants
tweak blocks8x8parade() to be a little more readable
add support for plank, sapling, log, and leaf variants
flag each texture for GL_NEAREST as it is loaded
flag for GL_NEAREST
flag each texture for GL_NEAREST as it is loaded