installation: less inclusion in MANIFEST.in
installation: less inclusion in MANIFEST.in

* FIX Adds missing inclusion of *.less files in the Python
  package installed from pip.

Signed-off-by: Jan Aage Lavik <8d55e006a1b29770f275a5c59a7341f17f8e69d5@cern.ch>

inveniosoftware/invenio-deposit,inveniosoftware/invenio-deposit,inveniosoftware/invenio-deposit,inveniosoftware/invenio-deposit