author and contributors normalization configured for other DCP content types

Based on email communication with Pete Muir I configured:
* jbossdeveloper_bom and jbossdeveloper_archetype content types to have same configuration for 'contributors' field normalization as jbossdeveloper_quickstart
* jbossdeveloper_example content type to have same configuration for both 'author' and 'contributors' fields normalization as jbossdeveloper_quickstart