Call Window: Ported to GSettings.
ExtWindow: Ported to GSettings.
StatusMenu: Ported to GSettings.
GSettings: Restrict callback to the exact key.

Otherwise, it will be executed for all keys in the schema.
Assistant: Ported to GSettings.
DBUS: Ported to GSettings and removed deprecated methods.
main (): Ported to GSettings.
Opal: Completed GSettings port.
Call History: Ported to GSettings.
Local Roster: Ported to GSettings.
GSettings: Removed remaining GConf/GmConf bits.

The port is now complete.