class library: freqscope gui: use start/stop instead of power, which is ambiguous
class library: GUI: plotter improvements

- plotter clips curve, to avoid misleading lines for clipped values
- plotter can print to pdf now (the p-key in keyDownAction)

A problem is still that we can't distinguish where curve really exceeds range and where it is just at the maximum.
class library: format code
class library: GUI: plotter uses better step size for zoom
class library: GUI: fix plotter clipping, so that it makes it possible to display waveforms that go to the limit.
class library: ScopeView is now main scope class
class library: Stethoscope is now main scope window class
class library: some comments on the gui redirects
class library: plotter synth avoids node not found errors
help: Updates to server related helo files

Info on clientID changes, *remote method, add some detail that was previously missing, cleanup.

Signed-off-by: Scott Wilson <i@scottwilson.ca>