Sampling rate NumControl implemented.
BRUTAL autoscale added.

Just for dbg tho. Tune needed.
Points infinite iterator. RT Exception in AcqG.PushData

Points infinite iterator implemented. RT Exception in
AcquisitionGUI.PushData after second iteration. Must fix asap.
<type 'exceptions.RuntimeError'>
('xdata and ydata must be the same lengt
xdata and ydata must be the same length')