Merge pull request #118 from lhotari/master

Implements properly GroovyObject in Hibernate proxies and also contains other Grails Hibernate performance optimizations
fix faiing test
Merge branch 'master' of github.com:SpringSource/grails-data-mapping
Merge pull request #119 from lhotari/master

hibernate3 module changes synchronized to hibernate4 module
fix for https://github.com/SpringSource/grails-data-mapping/issues/116 - allow explicitly setting region endpoint