Make ipython_view compatible to version >= 1.0
IPython has removed the frontend package from version 1.0 and above.
This prevents to use the ipython view on newer systems:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/dbus/service.py", line 707, in _message_cb
retval = candidate_method(self, *args, **keywords)
File "/usr/lib/python2.7/site-packages/gajim/remote_control.py", line 729, in toggle_ipython
gajim.interface.create_ipython_window()
File "/usr/lib/python2.7/site-packages/gajim/gui_interface.py", line 2679, in create_ipython_window
view = IPythonView()
File "/usr/lib/python2.7/site-packages/gajim/ipython_view.py", line 529, in __init__
input_func=self.raw_input)
File "/usr/lib/python2.7/site-packages/gajim/ipython_view.py", line 93, in __init__
IPython.frontend.terminal.interactiveshell.raw_input_original = input_func
AttributeError: 'module' object has no attribute 'frontend'
Tested with gajim 0.16 ipython 2.3.0 python 2.7.8
Fix is attached