video source uses uyvy as default format
removing format in video-source
reformat for clearer pdf
adding some explanation text
better doc into pd patches
preparing gobject wraper for custom signals
a wrapped gobject is available for each quiddity now, instead of per segment
Merge branch 'develop' of code.sat.qc.ca:switcher into develop

Conflicts:
	doc/workshop/workshop.rst
better formating of rst for pdf output