Move options out of initialization of Output in graphics2

* Don't initialize Output with options like filename, etc. Instead use
  set methods.
Added script to automatically test plots in graphics2
changes to Output.py and verif programs, addition of test.csh

verif program changes include the option to change x-axis label rotation, padding to axis labels, tick mark length and thickness, and plot boundaries on plotting pane.
These options are -xrot (rotation), -pad (padding between axis labels and axis), -majlth, -minlth (major and minor tick mark length), -majwid (thickness of major tick marks)
-top, -bot, -left, -right (top, bottom, left, and right boundaries, which eliminates truncation of plot when saving to file.

In Output.py, these options have been added to the -m timeseries plots.
Change signature of getOptions functions

* Scheme::getOptions and Configuration::getOptions now return options,
  instead of options being passed by reference