Uninstall Improvements

[jneilliii]

• [ ] If stored instances in registry are more than one provide a list of registered ports to select which one to remove.
• [ ] If uninstalling the last instance (or removing all instances at once from list) remove all files in {app} folder.
• [ ] Stop/Uninstall services based on selected uninstall.
• [ ] Add task to uninstall YawCam.