Finally fixed MIDI feedbacks and MIDI output in general

Input/Output panels unified to have a complete view of devices/profiles and feedbacks
Improved plugins descriptions and status
improved gitignore file
MIDI plugin included into translations

Updated translations
:mac-audio-support: added CoreAudio renderer stub
Fixed AudioCore renderer to invoke data callback on the proper thread
Merge branch 'mac-audio-support'
refined QLC+ cosmetic attributions
Fixed MIDI feedbacks
Improved MIDI output code on WIN32 and OSX
Oops, missing parenthesis
Added KORG nanoKONTROL2 input profile and 9 fixtures:

American-DJ-Par-38-Pro
Chauvet-COLORpalette
Chauvet-Slim-Par-Pro-RGBA
Chauvet-Slim-Par-Pro-VW
Clay-Paky-Mini-Scan-HPE
Eurolite-LED-Bar-RGB-252_10_40__Indoor
HQ-Power-Power-Space-250
Litecraft-PowerBar-4
Showtec-Indigo-6500
Fixed Eurolite fixture name
Improved MIDI plugin info and output only devices

Updated translations, changelog and TODO
Fixed EOF issue on MAD decoder which prevented a playback after the track preview
Increased rendering accuracy of Sequences and Audio Items
Fixed tests for 4.1.0 release
Improved security check on ChaserEditor

Updated changelog and fixed ola debian install
Oops, wrong variable name
Added OSC plugin (input only atm)

Started to fix OSX DMG dependency inclusion
Added configuration dialog for OSC plugin

Added TouchOSC Mix16 input profile
Attempt to fix build issue on OSX
Advanced to version 4.1.1