Add grails wrapper, update to grails 2.2.1, update embedded project to use local maven

Was running into issues when using a local plugin. These is work here still to make
version updating easier, but mainly want to get something working on a CI server
so am putting something out there I hope will work.
Update udp server to specify 127.0.0.1
Merge pull request #5 from charliek/grails_update2

Get CI Server integration in place