Description of problem: Unable to add arbitrary language to Zanata in new admin page
Pull request: https://github.com/zanata/zanata-server/pull/660
Tested with Zanata 3.6.0-SNAPSHOT (git-jenkins-zanata-server-github-pull-requests-2479) See https://github.com/zanata/zanata-server/pull/660#issuecomment-69685344 for details
VERIFIED with Zanata 3.6.0-SNAPSHOT (git-jenkins-zanata-server-github-pull-requests-2480)