.travis.yml code cleanup Fixed indentation Move coverage build to script Update travis node version to 6 Update npm to use yarn for CI
.travis.yml code cleanup
Fixed indentation
Move coverage build to script
Update travis node version to 6
Update npm to use yarn for CI

jonom/silverstripe-cms,silverstripe/silverstripe-cms,silverstripe/silverstripe-cms,jonom/silverstripe-cms