Use case insensitive matching (fixes #39).

Author: KN4CK3R

ReClass.NET/Forms/ClassSelectionForm.cs

@@ -53,7 +53,7 @@ private void ShowFilteredClasses()
 
 			if (!string.IsNullOrEmpty(filterNameTextBox.Text))
 			{
-				classes = classes.Where(c => c.Name.Contains(filterNameTextBox.Text));
+				classes = classes.Where(c => c.Name.IndexOf(filterNameTextBox.Text, StringComparison.OrdinalIgnoreCase) >= 0);
 			}
 
 			classesListBox.DataSource = classes.ToList();