Time to switch to the .tox extension
Merged master into tox-extension and fixed conflicts
Some more work done on SwitchProfileDialog
Switching profiles should work now

"Import" doesn't do anything yet.

Known issue: trying to open SwitchProfileDialog with a newly created
profile will throw an exception.
Hide the import button for now
Added an option to create a new profile
Clean everything up when killing tox
Small fix for portable mode
Merge remote-tracking branch 'origin/tox-extension'
Get rid of this mess