conpaas: add mock to travis.yml dependencies

git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5113 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
conpaas-core: add test_agent and fix test_git


git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5114 ef35cc4a-2640-4bbf-98bc-65920db7d8ae
conpaas: automatically test conpaas-core


git-svn-id: svn://svn.forge.objectweb.org/svnroot/contrail/trunk/conpaas@5115 ef35cc4a-2640-4bbf-98bc-65920db7d8ae