made the tab display a file name without path and extension. Made the tab have a * if the file is edited. Fixed some bugs with selection. Implemented drag-drop file support for opening files.

Gen3Hex/View/WindowsFileSystem.cs

@@ -23,7 +23,6 @@ namespace HavenSoft.Gen3Hex.View {
       }
 
       public bool Save(LoadedFile file) {
-         if (!File.Exists(file.Name)) return false;
          File.WriteAllBytes(file.Name, file.Contents);
          return true;
       }