Small fixes for web deploy

Web/Utility/ExcelWriter.cs

@@ -35,7 +35,8 @@ namespace MileageTraker.Web.Utility
 			// write column headers
 			var properties =
 				typeof(T).GetProperties()
-					.Where(p => !p.PropertyType.IsCollection());
+					.Where(p => !p.PropertyType.IsCollection())
+					.ToList();
 
 			properties.Zip(
 				CustomExtensions.GetNumbers(), 

Web/Utility/FormatHintAttribute.cs

@@ -5,7 +5,7 @@ namespace MileageTraker.Web.Utility
 	[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
 	public class FormatHintAttribute : Attribute
 	{
-		public string Text { get; set; }
+		public string Text { get; private set; }
 
 		public FormatHintAttribute(string text)
 		{
@@ -15,7 +15,7 @@ namespace MileageTraker.Web.Utility
 	[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
 	public class UnitsAttribute : Attribute
 	{
-		public string Text { get; set; }
+		public string Text { get; private set; }
 
 		public UnitsAttribute(string text)
 		{
@@ -27,22 +27,4 @@ namespace MileageTraker.Web.Utility
 	public class NoEditLabelAttribute : Attribute
 	{
 	}
-
-	[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
-	public sealed class RenderModeAttribute : Attribute
-	{
-		public RenderMode RenderMode { get; set; }
-
-		public RenderModeAttribute(RenderMode renderMode)
-		{
-			RenderMode = renderMode;
-		}
-	}
-
-	public enum RenderMode
-	{
-		Any,
-		EditModeOnly,
-		DisplayModeOnly
-	}
 }