I think it is time to just make another release. Some of the things in here aren't necessarily done. The new control widget is merged, but it still needs a lot of work. Releasing now gives you all the chance to test it out and let me know how it is working for you. However the older button based interface remains so you aren't required to use the new scheme.
Many of the changes in this release are under the hood and not visible to the user. VISCA users in particular should see compatibility with more cameras and more consistent behaviour. Quite a few protocol bugs have been found and squashed. The viscaemu.py script has been enhanced to help with testing.
What is visible is a new 'touch' control scheme that can be selected by clicking the touch button in the toolbar. The touch widget controls pan and tilt based on where inside the widget is clicked. Close to the centre for slow moves, outside edge for fast. Also, speed limits can now be set on for pan, tilt, zoom and focus movements which should improve control of cameras that can move very fast. Hotkeys and PTZ Actions have been added for saving a preset.
Go forth and test!