Update rollbar to 0.13.1
Future proof rollbar config so that it is already enabled when we create a staging environment
Merge pull request #373 from Helabs/fr-enable-rollbar-on-staging

Future proof rollbar config so that it is already enabled when we create a staging environment
Merge pull request #372 from Helabs/fr-update-rollbar

Update rollbar to 0.13.1
Add bourbon
Add feature to bourbon
Add changelog