add ability to get the lB object (getParent) - perhaps a bit messy bu…

…t allows us to overwrite a renderer with the same name

lib/lazyBum.js

@@ -476,13 +476,17 @@ var getLocal = function(str){
 		return require('./' + str);
 	}
 }
+var getParent = function(str){
+  return require('./' + str)
+}
 
 exports.getHelper = function(str) {
 	return getLocal('helpers/' + str);
 }
 
-exports.getRenderer = function(str) {
-	return getLocal('renderers/' + str);
+exports.getRenderer = function(str, parent) {
+  if(parent){ return getParent('renderers/' + str); }
+	else{ return getLocal('renderers/' + str); }
 }
 
 exports.getLogger = function(mod) {