base: demosite cleanup
base: demosite cleanup

* Prevents the demosite command to load the testsuite init script.

Signed-off-by: Yoan Blanc <7e8c88beed64bd6a341c3085bc82ac100e832f6e@cern.ch>

tiborsimko/invenio-base,inveniosoftware/invenio-base,inveniosoftware/invenio-base,tiborsimko/invenio-base