The display of the ReadOnlyPasswordHashWidget has also been improved to
distinguish empty/unusable password from erroneous password.
Fixed#18453 also.
Thanks danielr and Leo for the reports and Moritz Sichert for the
initial patch.
Adds a salted MD5 hasher for backwards compatibility.
Thanks gunnar@g10f.de for the report.
Also fixes a bug preventing the hasher tests from being run during
contrib tests.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@17604 bcc190cf-cafb-0310-a4f2-bffc1f526a37