Clicking the 'Accept' button in My Settings->Network produces traceback

[m_anish]

Testcase

* Open the My Settings panel
* Open the Network (settings) panel
* Click the 'Accept' button (top right button on the screen)
* The Network (settings) panel doesn't close
* Traceback in Logs

Log attached below

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)

/usr/lib/python2.7/site-packages/jarabe/controlpanel/gui.pyo in __accept_clicked_cb(self=<ControlPanel object at 0x8f2a93c (SugarControlPanel at 0x8cf8810)>, widget=<SectionToolbar object at 0x8ff125c (SectionToolbar at 0x8f7a8a8)>)
    292 
    293     def __accept_clicked_cb(self, widget):
--> 294         self._section_view.perform_accept_actions()
    295         if self._section_view.needs_restart:
    296             self._section_toolbar.accept_button.set_sensitive(False)

/usr/share/sugar/extensions/cpsection/network/view.pyo in perform_accept_actions(self=<Network object at 0x8f2efcc (SugarSectionView at 0x8c92a80)>)
   1007 
   1008     def perform_accept_actions(self):
-> 1009         self._model.set_ssids(self._widget_table._get_entries())
   1010 
   1011     def __launch_button_clicked_cb(self, launch_button):

AttributeError: 'Network' object has no attribute '_widget_table'
1329986882.402614 WARNING root: _Account.__set_current_activity_cb

[ajay_garg]

Commit Link:
 http://git.sugarlabs.org/dextrose/mainline/commit/729d3aeb53c17eb84a6192357d8f3410e9535fcb

When clicking the "OK" button, the "hook" function tries to save the specified
ssids of hidden networks. Earlier, this call was being executed, irrespective of
the presence of "hidden-network-connect" rpm. However, that would result in an
exception.

Fixed this - now the call is made, only when the "hidden-network-connect" package
is available.