keybinding schema: replace mateconftool-2 --toggle with equivalent gsettings commands

[tamer-hassan]

mate-settings-daemon $ grep mateconftool-2 data/org.mate.keybindings.gschema.xml.in
<default>'mateconftool-2 --toggle /desktop/mate/applications/at/screen_magnifier_enabled'</default>
<default>'mateconftool-2 --toggle /desktop/mate/applications/at/screen_reader_enabled'</default>
<default>'mateconftool-2 --toggle /desktop/mate/applications/at/screen_keyboard_enabled'</default>

[stefano-k]

There is no --toggle equivalent in gsettings/dconf

[infirit]

I have 2 solutions to this:

bash script: http://paste.mate-desktop.org/view/07def43d
Python script: http://paste.mate-desktop.org/view/7193d8b6

Personally I like the python version but I know @stefano-k wants the bash version. Can you test the bash version and let me know if this works?