Clean up drag-drop code in PTYTextView. Remove aincent senseless code for 'extended drag-n-drop' which never made sense and doesn't seem to do anything. Also make cmd-drag of a single filename issue 'cd filename(newline)'
Clean up drag-drop code in PTYTextView some more.
Use tab style for find view and paste progress indicator view
Fix bug where window shortcut indicator would say 'Label' and where it would show as light when a window becomes key but not main.