Fix tipo.
Cherry pick commit f1f4ac38ceb5b22a70a0ac403e11758589e2fcc2
Cherry pick commit e8af9a187790bd77a9fa77d1f2fba2ed5a3594af
Fix vectorial.
Make it backward compatible with existing code.
Merge from master branch.
Maintain a version of the direct image window manager.
Fix laggy image due to hash bug.
Fix missing return value.
Fix camera serial issue with multiple kinects.
Fix freenect lookup.
Add thread debugging helpers.
Make thread restarts somehow possible.
Support near mode switching.
Enable individual event listener removal.
Fix crash.
Make grabber thread termination thread-safe.
Optimize depth to color.
Improve timing tool.
Optionally support a target framerate for grabbers.