Bring autofocus to previous position when cancelling

[Daniel Lorenzo]

When cancelling the autofocus procedure, it would be good to bring the focuser back to its position before the procedure.

..Or ask the user if he wants to

..Or add an option to choose

[Stefan B]

This is already implemented for 1.11 once the nightlies start.

[Daniel Lorenzo]

Nice! Makes me want to use nightly now