Mission Planner wizard changes frame type from X to Plus on start of wizard

I have X frame hexa rotor, and entered the Mission Planner wizard by accident. (Which is easy to do on an 8" tablet PC). It immediately changed my Frame type from X to Plus. There was no indication that anything changed, and I bailed out of the wizard with out completing any of the setup and calibration steps. My copter performed a cartwheel on take off. This happen to me again after I upgraded to APM copter 3.1.2. I did not want to perform the calibration steps, and bailed out of the wizard with out setting the frame type. Again my Frame to switched from X to Plus resulting in another cartwheel on takeoff. Damage was minor, and I am pretty sure I won't make this mistake again. But It would be nice if the wizard had a quit button and did not save any changes until the end of the wizard.

Start by reproducing the Mission Planner wizard flow with an X-frame hexa rotor and observe when the frame type changes. The work is done when leaving the wizard without completing setup does not save changes, and the wizard provides a clear way to quit without changing the frame type.

Written by the indexing model from the issue text.