CD isn't working

[anuveyatsu]

Need to put back what's removed here #429 and give Datopianbot a write access to deploy repo.

Acceptance criteria

• [x] CD is back so that when I push to master branch it auto creates a PR in deploy repo (and deploys to staging site automatically as before)

Tasks

• [x] put back removed deploy script (basically revert .travis.yml file)
• [x] figure out credentials for datopianbot user
• [x] give it write access to deploy repo
• [x] test it out

[anuveyatsu]

@svetozarstojkovic if you cannot get Datopianbot credentials, you have 2 options:

• trigger "Forgot password" so that it sends recovery email which then you can access (ask somebody eg Ioana if they got the email)
• use your own account to do this instead of datopianbot