fixes namcap mate-file-archiver issues

mate-file-archiver E: Dependency dconf detected and not included (needed for glib schemas)
mate-file-archiver E: Dependency gtk2 detected and not included (libraries ['usr/lib/libgtk-x11-2.0.so.0', 'usr/lib/libgdk-x11-2.0.so.0'] needed in files ['usr/bin/engrampa', 'usr/lib/caja/extensions-2.0/libcaja-engrampa.so'])
mate-file-archiver W: Dependency glib2 included but already satisfied
Merge pull request #47 from wookietreiber/wip-deps-mate-file-archiver

fixes namcap mate-file-archiver issues