title: Mercurial: Meld launching issues in Mac OS X and Meld not detected in Mercurial
body: <p>I installed <code>meld</code> using Macports following the instructions in <a href="http://www.codez.co.uk/2014/02/meld-on-mac-osx-mavericks-10-9/" rel="nofollow">here</a>. I even installed <code>XQuartz</code> as well. </p>
  
  <p><strong>Problem is</strong>: every time I tried to launch meld from command line, I received a bunch of errors warning messages below, and somehow the meld window still launched. I would like to get rid of these error messages because they make me feel really unsafe using <code>meld</code> if these error msgs pop up every time I try to launch. Is there a solution to this ? </p>
  
  <pre><code>Couldn't bind the translation domain. Some translations won't work.
  'module' object has no attribute 'bind_textdomain_codeset'
  
  ** (process:622): WARNING **: Trying to register gtype 'GMountMountFlags' as enum when in fact it is of type 'GFlags'
  
  ** (process:622): WARNING **: Trying to register gtype 'GDriveStartFlags' as enum when in fact it is of type 'GFlags'
  
  ** (process:622): WARNING **: Trying to register gtype 'GSocketMsgFlags' as enum when in fact it is of type 'GFlags'
  /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/gobject/__init__.py:115: Warning: attempting to add an interface (GtkEditable) to class (HistoryFileEntry) after class_init
    type_register(cls, namespace.get('__gtype_name__'))
  </code></pre>
  
  <p><strong>Second question is</strong>: I want to be able to use <code>meld</code> as a visual diff tool in Mercurial. And I have the following configurations in my <code>.hgrc</code> file. But somehow I kept getting an error saying <code>No visual diff tools were detected.</code> Am I missing something in the <code>.hgrc</code> file ? </p>
  
  <pre><code>[ui]
  merged = meld
  [tortoisehg]
  vdiff = meld
  </code></pre>