calling create on existing image will not throw exception now
added update modified time stamp to create methods on image
call update when requesting access
avoid throwing exception after window and pipeline have stopped
set is modified to false before executing process objects
prevent event loop from being quit twice
avoid deadlock when destroying streamer
avoid deadlock when destroying streamer
some improvements to ICP
added option of doing rigid or translation registration type in ICP
added pipeline D to benchmark
removed some cout
if a data node that doesn't exist is requested from the scene graph it is created
use transformation from scene graph in point renderer
use transformations in scene graph in ICP
added the getEulerAngles method and changed file used in pipeline d benchmark
fixed a bug with initial transform in ICP
added a simple color class
improved the Point renderer to accept multiple input and set color, size and draw on top
added timeout to benchmark