added a note on what to do when app developers want to provide translations for languages where there is no django-provided base translation.
added a note on what to do when app developers want to provide translations for languages where there is no django-provided base translation.


git-svn-id: 554f83ef17aa7291f84efa897c1acfc5d0035373@2046 bcc190cf-cafb-0310-a4f2-bffc1f526a37

svn2github/django,svn2github/django,svn2github/django