[build] update idea metadata generation to new Gradle api
[build] update idea metadata generation to new Gradle api

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