Icon requests: Meld

[kyrios123]

Meld does not work with Arc theme because it wants its own icons.
It would be nice to have arc icons for this application to prevent such errors and have a nice integration with the desktop.

File "/usr/lib/python2.7/site-packages/meld/newdifftab.py", line 119, in on_button_compare_clicked
  tab = self.diff_methods[self.diff_type](compare_paths)
File "/usr/lib/python2.7/site-packages/meld/meldwindow.py", line 691, in append_filediff
  doc = filediff.FileDiff(len(files))
File "/usr/lib/python2.7/site-packages/meld/filediff.py", line 249, in __init__
  from meld.gutterrendererchunk import GutterRendererChunkAction, GutterRendererChunkLines
File "/usr/lib/python2.7/site-packages/meld/gutterrendererchunk.py", line 96, in <module>
  GtkSource.GutterRendererPixbuf, MeldGutterRenderer):
File "/usr/lib/python2.7/site-packages/meld/gutterrendererchunk.py", line 101, in GutterRendererChunkAction
  MODE_REPLACE: load("meld-change-apply-right"),
File "/usr/lib/python2.7/site-packages/meld/gutterrendererchunk.py", line 35, in load
  return icon_theme.load_icon(icon_name, LINE_HEIGHT, 0)
GLib.Error: gtk-icon-theme-error-quark: Icon 'meld-change-apply-right' not present in theme Arc (0)