automated deploy from travis CI failing

thinking it might be easier to keep devops issues in github as we are doing in the NHSwiki project ...

Passing builds are not deploying as expected, e.g. https://travis-ci.org/AgileVentures/LocalSupport/builds/476763734


error (which might be a red-herring) is:

```
Skipping a deployment with the script provider because this branch is not permitted: develop
```

quick test might be to revert to only having auto-deploy for develop and not for staging to see if the multiple branch providers are the problem ...