global: test suite nosification

* Nosifies test suite for the maint-1.0 branch too.  The tests can be run via
  `sudo -u www-data nosetests /opt/invenio/lib/python/invenio/*_tests.py`.
Merge branch 'maint-1.0' into maint-1.1

* maint-1.0:
  global: test suite nosification