Add translation jobs for swift

https://review.openstack.org/#/c/97092/ setups translations for swift,
and transifex is ready, we can now run the jobs as well and start
translations...

Change-Id: If431c68e10fed4a567bcbc9ebf172074c9a65f2b
Closes-Bug: #1082805
Closes-Bug: #608725
Merge "Add translation jobs for swift"