Improve test-languages.sh

Add setup of user-guide and user-guide-admin for publishing target, this
was missing before and thus these guides were not build..

Be more verbose in setting up directories and invocation of
openstack-doc-test.

Change-Id: I3d41dd813376624238903b38c779b53e7b93547c
Imported Translations from Transifex

Change-Id: If625dc7a226bf8c61603b7ae2750e395c3440c70
Merge "Improve test-languages.sh"