* Update Slack notification to always notify.
* Add optional parameter to `tx-pull-www` to pull just resources for a particular language. Helpful when validations are failing for one language.
Created a slack integration that posts to the scratch-ops channel and ddded the token as ENV variable in travis.
Configured the slack notification to only post on failure.
* Add travis deploy step for cron job to update automatically.
* switch to reviewed translations
* make update script check for non-zero return codes from the update and test.
Add .travis.yml, configured to use travis build stages. Releases should only happen if the branch is one listed in RELEASE_BRANCHES (set up in travis env variable)