Moved type helper methods from TypeFinder2 to TypeHelper. Created SystemUtilities for detecting

app trust levels. Updated all calls to TypeFinder to TypeFinder2 and updated tests.

src/Umbraco.Core/SystemUtilities.cs

@@ -0,0 +1,40 @@
+using System.Security;
+using System.Web;
+
+namespace Umbraco.Core
+{
+	/// <summary>
+	/// Static helper methods for returning information about the current System
+	/// </summary>
+	public static class SystemUtilities
+	{
+
+		/// <summary>
+		/// Get the current trust level of the hosted application
+		/// </summary>
+		/// <returns></returns>
+		public static AspNetHostingPermissionLevel GetCurrentTrustLevel()
+		{
+			foreach (var trustLevel in new[] {
+			                                 	AspNetHostingPermissionLevel.Unrestricted,
+			                                 	AspNetHostingPermissionLevel.High,
+			                                 	AspNetHostingPermissionLevel.Medium,
+			                                 	AspNetHostingPermissionLevel.Low,
+			                                 	AspNetHostingPermissionLevel.Minimal })
+			{
+				try
+				{
+					new AspNetHostingPermission(trustLevel).Demand();
+				}
+				catch (SecurityException)
+				{
+					continue;
+				}
+
+				return trustLevel;
+			}
+
+			return AspNetHostingPermissionLevel.None;
+		}
+	}
+}