Remove stop/start dispatching, rename increment_loop to step_stage and decouple the different methods.
Remove the renderer and just use children for storing Widget types.
move stage base to init.
Add single digital channel type to gate.
Change on_pause to pause and unpause methods.
Make stage stop return True/False.
Update delay stage to reflect base stage changes.
Merge branch 'master' of https://github.com/matham/moa