[WIP] Monitor: started 2D view implementation
Merge branch 'master' of github.com:mcallegari/qlcplus
[WIP] Monitor: properties moved to a separate class, saved and loaded into/from Doc.

Fixture Items looks ok now
Monitor: first working version of 2D preview (RGB only ATM)
Merge pull request #242 from janosvitok/master

Pitch wheel for Linux
Monitor: added rendering of CMY channels (not sure it's ok though)
Monitor: removed useless update call and fixed items Z order
RGBPanel: handle multi-universes span. Do not allow overlapping addresses

InputOutputMap: give universes a default name
* Added fixture: AGPtek RGB 6ch Crystal Ball (thanks to Davey Daytona)

* Added fixture: American DJ Tribar Spot2 (thanks to Rob Goudriaan)
Plugins: ArtNet and E1.31 serious CPU optimization on packet receive (saves 70+%)

Engine: optimize universe passthrough signalling
Add xml namespace to American DJ Tribar Spot, normalize decimal point