Updated EditMacro.js to support inserting different syntax depending on rendering engine. Just need to get it to insert the params for MVC now.

Added HttpRequestExtenions with a method GetItemAsString which obsoletes/supercedes the old 'umbraco.helper.Request' method.

src/Umbraco.Web/HttpRequestExtensions.cs

@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Web;
+using Umbraco.Core;
+
+namespace Umbraco.Web
+{
+	/// <summary>
+	/// Extension methods for the HttpRequest and HttpRequestBase objects
+	/// </summary>
+	public static class HttpRequestExtensions
+	{
+		/// <summary>
+		/// Safely get a request item as string, if the item does not exist, an empty string is returned.
+		/// </summary>
+		/// <param name="request"></param>
+		/// <param name="key"></param>
+		/// <returns></returns>
+		public static string GetItemAsString(this HttpRequest request, string key)
+		{
+			return new HttpRequestWrapper(request).GetItemAsString(key);
+		}
+
+		/// <summary>
+		/// Safely get a request item as string, if the item does not exist, an empty string is returned.
+		/// </summary>
+		/// <param name="request"></param>
+		/// <param name="key"></param>
+		/// <returns></returns>
+		public static string GetItemAsString(this HttpRequestBase request, string key)
+		{
+			var val = HttpContext.Current.Request[key];
+			return !val.IsNullOrWhiteSpace() ? val : string.Empty;
+		}
+
+	}
+}