removed nite
logging OpenNI class + listener
refactor: step 1
refactor: 2/2
refactor 3
simple usage example
refactor 4:

removed threads
added: update, draw
rename, made static, namespace, added Options
add: Server is a Singleton
device draw refactor
preallocate textures
partial Revert "refactor 4:" (threading)

This reverts commit fda60cc1257e7fec002629ab9c13e0a598c036ec.

Conflicts:
	nite2Test/src/testApp.cpp
	src/ofxOniDevice.cpp
	src/ofxOpenNi2.cpp
	src/ofxOpenNi2.h
removed texture swapping
cleanup