adding converters to fix CommonTypesPersistenceSpec with RestGraphDatabase
[Grails][Grails] is a framework used to build web applications with the [Groovy][Groovy] programming language. This project provides the plumbings for the GORM API both for Hibernate and for new implementations of GORM ontop of NoSQL datastores. [Grails]: http://grails.org/ [Groovy]: http://groovy.codehaus.org/
For further information on the project see the comprehensive [developer guide][Developer Guide]. [Developer Guide]: http://springsource.github.com/grails-data-mapping/
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