bumped min Grails version to 1.3
deleted unused files
cleanup
added license, developers, issueManagement, and scm fields
upgraded to use Grails 2, which is required to publish plugins. You can still target older versions but must release using 2.0+ and release plugin 2.0+. You can use a higher version if you want, I used 2.0.4 since it's my default
Merge pull request #1 from burtbeckwith/master

cleanup