fix silently failing minitests

set fallback path for LdapFluff config file
Merge remote-tracking branch 'daviddavis/temp_1366806749' into quick-fix/minitest

* daviddavis/temp_1366806749: (2 commits)
  Fixing broken tests due to mismatched classes
  ...
ChangesetTest#test_content_view_changeset_promotion skipped temporarily to get travis tests working
Merge pull request #2054 from pitr-ch/quick-fix/minitest

minitest errors out and returns 0 due to ldap_fluff.yml not being readable
Initial set of tests for permission checking