Duplicate parameters problem

* [GPPROTO-4](http://jira.grails.org/browse/GPPROTO-4) + [GPPROTO-5](http://jira.grails.org/browse/GPPROTO-5) - duplicate parameters, integration tests are green, now
* upgrade to Grails 2.1.3
* upgrade of some dependencies
* dependency problems fixed
* additional integration test for the updater case
* functional tests work and are green, now