Fix Issue #165 by removing --pylab from our ipython command line.  Its f...

...unctionality is replaced with some initCode, both matplotlib magic to get inline graphics, plus all the imports.  We should make the initCode (at least this the optional parts of it) a plugin setting so people can change it.  IPython does not recommend using all these imports: http://stackoverflow.com/questions/20525459/ipython-pylab-vs-ipython