title: Django compilemessages doesn't create .mo files
body: <p>I'm trying to make my django app available in French (previously it was only available in English).  I've marked a few strings in my app for translation, to try it out.  I went to the root directory of my app (where manage.py is located) and ran <code>django-admin.py makemessages -l fr_CA</code>.  This created a <code>django.po</code> file inside <code>myapp/locale/fr_CA/LC_MESSAGES</code>.  I edited that file, providing translations.  Heading back to my app's root directory, I ran <code>django-admin.py compilemessages -l fr_CA</code>.  The command returned quickly with no output to stdout.  No <code>.mo</code> file was created.</p>
  
  <p>Why doesn't this create a .mo file?</p>
  
  <p>I tried setting my LOCALE_PATHS in my settings file, but this had no effect (and besides, I did not need to do that to create the .po files, since they are being located in the default location, <code>path/to/myapp/locale</code>).</p>