Implemented page-flipping scannable for pager widget
refs #899
Added depracation tags
refs #899
Added flipper to pager page
refs #899
Changed viewer JSON files to accomodate to new scanning style
refs #899
Removed prints from pager.py
refs #899
Updated symboler to new pager usage
refs #899
Transformed PagerFlip to standalone widgets
refs #899
Add property adapter to PageFlip
Fix error when target is unset
Added logging to pager module
refs #899
Added PageFlip to viewer jsons
refs #899
Merge branch 'master' into pager-subgroups
Added handlers for media players control
Added handlers for pause, stop, play, rewind back and forth, volume in and decrease
refs #984
Fixed handlers docs with blank lines
refs #984
Commented out unwind-to in pager page
refs #899
Fixed handlers in group observer
refs #899
Set proper scanning order in viewer
refs #899
Init clutter gst every time just once
refs #990
Merge branch 'audio-gst' of github.com:BrainTech/pisak into audio-gst

Conflicts:
	pisak/media.py
Merge branch 'master' into audio-gst
Merge branch 'audio-gst'
Merge branch 'audio-gst'