first steps for MIDI control implementation
raised max number of shared videos from 4 to 8
added midi control to gui elements, with a sort of self-learning feature: right click on control to put it on learning mode, then send the midi message you intend to use to control it, et voilà
added auto-learn feature for controlling gui with unrecognized osc messages, similar to midi feature
separated midi parsing stuff in its own source file, added pitch_bend type messages
added possibility of using two note_on midi messages to control decreasing and increasing a slide value
fix for a bug that prevented midi note-on to update sliders when gui was off
added shared-videos to resync, start and stop commands
added hotkey-midi coupling and assigned F4 hotkey to it
added hotkey-osc coupling too
updating to latest OF code, to be checked and refined, adapted to latest timeline addon code too, WIP
fixed things with timeline, still a bug in timeline addon code that repositions keys that have position values outside default linetime duration at loading them from xml file
more fixes for timeline, needs a bit of refinement and testing