remove some redundancy and make the definition of which plugins to include in the distribution clearer
remove some redundancy and make the definition of which plugins to include in the distribution clearer

clockworkorange/grails-core,clockworkorange/grails-core,clockworkorange/grails-core,clockworkorange/grails-core,clockworkorange/grails-core,erdi/grails-core,erdi/grails-core,erdi/grails-core