Lab 2 update

The automatic frequency sweep ran into trouble: you have to adapt the time base of the oscilloscope to the frequency to get a meaningfull recording to determine the phase. A new function [ok] = MDO_TimebaseScale(h,scale) is provided and inserted into the example loop given in task 2. This should save the issue.

Also note the update of a 'pause' command in the matlab script provided in the lab text!