tooltip functionality and content
key_commands for enter and up-arrow working.
working key_commands for transcription purposes
tooltip complete with icons and play and pause.
play/pause working for shift tab - same key
moved the ordering of the commands in the tooltip around
using tab is better than shift tab
Merge branch 'commands_from_image_branch' into add_image_branch
merge back to source
Merge pull request #475 from PRX/add_image_branch

Add image branch