Need a feature to reload text file

[Gene Woo]

In some cases, I edit the text files in two different editor (pyroom and VI). I do want to reload the content from disk.

VI for editing macro and some basic txt2tags formation.
pyroom will help me writing something.

I did a reload feature in my local copy, it just work, I didn't polish it. Here is my changes.

    def load_buffer(self):
        """ reload file = close and open """
        #Close current buffer
        autosave_fname = autosave.get_autosave_filename(
            self.buffers[self.current].filename
        )
        if os.path.isfile(autosave_fname):
            try:
                os.remove(autosave_fname)
            except OSError:
                raise PyroomError(_('Could not delete autosave file.'))
        if len(self.buffers) > 1:
            closedfilename = self.buffers[self.current].filename
            self.buffers.pop(self.current)
            self.current = min(len(self.buffers) - 1, self.current)
            self.set_buffer(self.current)
            # open last closed file
            self.open_file_no_chooser(closedfilename)