Fixes #622 - Allow a Transforms to have multiple types
I had to modify the Transforms Domain class and the Bootstrap.groovy file.
It's now possible to give several types to a single transforms in the demo-config.groovy file as such: type='titles,subscription'
Grails will create a new table called transforms_refdata_value to join the Transform and Refdata_value tables.
Merge branch 'newdev' into edina