NRT writer
some small fixes, added notes to helppatch
added AxisAndGrid
shutter pin fixed
depth reconstruction stuff now works with ortho projection
2d distance field texture filter
small fixes on tfx + added DropShadow and Crop
fixed appendbuffer examples
texture echo without framedelay or cs
removed BlendBasic tfx duplicate from /filter
BlendBasic fix
Merge pull request #23 from unc-quite/master

non-realtime writer module