UI and Data Output changes

For stim creation - added duration of zero pulse
output data now includes more info about the structure of stimulus (i.e.
period, magnitude, etc).
Adjusted the way the experiment stim count is done so that it's correct
for output analysis
Removed text from post experiment notes so it's blank for the user.
User no longer asked to select cantilever position if in behavior mode -
automatically tracks to center of image.
Stage now moves during stimulus application