rename parent to root

compiler/generate/index.js

@@ -387,8 +387,8 @@ export default function generate ( parsed, source, options ) {
 
 	if ( templateProperties.onrender ) {
 		initStatements.push( deindent`
-			if ( options.parent ) {
-				options.parent.__renderHooks.push({ fn: template.onrender, context: this });
+			if ( options.root ) {
+				options.root.__renderHooks.push({ fn: template.onrender, context: this });
 			} else {
 				template.onrender.call( this );
 			}
@@ -489,7 +489,7 @@ export default function generate ( parsed, source, options ) {
 				state = {};
 			};
 
-			this._parent = options.parent;
+			this.root = options.root;
 
 			${initStatements.join( '\n\n' )}
 		}

compiler/generate/visitors/Element.js

@@ -58,7 +58,7 @@ export default {
 
 					var ${name} = new template.components.${node.name}({
 						target: ${generator.current.target},
-						parent: component._parent || component,
+						root: component.root || component,
 						data: ${name}_initialData
 					});
 				` );
@@ -66,7 +66,7 @@ export default {
 				local.init.unshift( deindent`
 					var ${name} = new template.components.${node.name}({
 						target: ${generator.current.target},
-						parent: component._parent || component
+						root: component.root || component
 					});
 				` );
 			}