Fixed bug with not opening the editor when clicking a file from the file browser. Implemented watching the file on disk. * MainWindow: Simplified opening file request calls. * FileEditor: Added new slot that closes tabs without and index and made FileEditorTabs connect to it. * FileEditorTab: Added QFileSystemWatcher and fixed bug with setting modified status on m_modified. Implemented message boxes for the cases that a file has been removed, renamed und modified from outside.

#include <octave/oct.h>
#include <octave/Cell.h>

DEFUN_DLD (celldemo, args, , "Cell Demo")
{
  octave_value_list retval;
  int nargin = args.length ();

  if (nargin != 1)
    print_usage ();
  else
    {
      Cell c = args (0).cell_value ();
      if (! error_state)
        for (octave_idx_type i = 0; i < c.nelem (); i++)
          retval(i) = c.elem (i);
    }

  return retval;
}