Add connection between client commands and LOKit.

Change-Id: I2593b3c0b7a82612924bf63c3be85963f5a20d32
Reviewed-on: https://gerrit.libreoffice.org/35434Reviewed-by: jan iversen <jani@libreoffice.org>
Tested-by: jan iversen <jani@libreoffice.org>