workaround for GGTS/greclipse compilation bug
Groovy:[Static type checking] - Cannot call grails.rest.render.Renderer <java.lang.Object>#render(java.lang.Object <java.lang.Object>, grails.rest.render.RenderContext) with arguments [T, grails.rest.render.RenderContext]
Merge branch '2.3.x' into 2.4.x