Merge pull request
#1707 from bfroehle/_1532_qtconsole_gui_switch...
Merge pull request
#1707 from bfroehle/_1532_qtconsole_gui_switch
move gui/pylab to shellapp base class
If both --gui and --pylab are given, we use the value in --pylab, just
like the terminal IPython application.
Closes
#1532