Merge pull request #153 from NiKoyes/master

French Translation
Give sliders a look closer to real consoles
VC Sliders can now be turned into knobs ! (to be completed and tested)
VC slider/knob switch improvement. Still not working though.
Finalized Slider/Knob style functionality
Updated docs and translations. Version fixed to 4.4.0.
4.4.0 Release
Fixed crash when using knobs in percentage mode

Bump to version 4.4.1
Fixed copy of a knob resulting in a slider again
Fixtures groups are now saved when exporting fixtures lists
Little fix to fixture info panel showing wrong address range
Improved audio volume code for differemt sample sizes.

Unlock PortAudio renderer callback mutex BEFORE sleeping
Saved a lot of CPU usage during Show playback from the Show panel
Added fixtures: QTX SL Series
Small cosmetic fix: display only one angle if max and min angle are equal
Starting to integrate fixture remap code

Need to fix minor graphics aspects and the actual project remapping
Fixed connection graph painting
Remap: fixtures replacement done, scene values remapping done
Added remap fixture removal + fixed remap fixtures add

Fixed mouse wheel scroll on fixtures remap dialog
Added Chaser remap (in sequence mode)

Allow multiple remap (one to many). Slow down a bit but it's freaking awesome !
Added progress popup dialog