Stop forcing profiling

The profiling calls were referencing a static variable in ProgAcq, rather
than checking with the acquisition parameters. This has been fixed.

Signed-off-by: Luke Stuyvenberg <stuyvenberg@wisc.edu>
Correct XY stage forgetting velocities

The X/Y stage wasn't storing the new velocity when the velocity properties
were changed. As a result, the next time the stage was moved, the
velocities reverted to their previous values. I've corrected this
behavior.

Signed-off-by: Luke Stuyvenberg <stuyvenberg@wisc.edu>