gateone.py:  Fixed a bug where it wasn't reading settings correctly for new installs.  This should resolve issue #187 (https://github.com/liftoff/GateOne/issues/187).
utils.py:  Added a helpful error message that will be printed in the event that a settings file could not be parsed *and* an exception was encountered trying to provide an even *more* helpful error message.
gateone.js:  A few little tweaks here and there (trivial stuff).  Also added some ideas for the forthcoming "pane" method.