Use django make_password
Use django make_password

Use django.contrib.auth.hashers.make_password in StandardAuthBackend.

Testing done:
Ran test suite, but lots of apparently unrelated failures. Tested changing a
password manually.

Reviewed at http://reviews.reviewboard.org/r/3363/
Fixes issue #2726

davidt/reviewboard,1tush/reviewboard,custode/reviewboard,brennie/reviewboard,custode/reviewboard,KnowNo/reviewboard,reviewboard/reviewboard,beol/reviewboard,1tush/reviewboard,KnowNo/reviewboard,1tush/reviewboard,brennie/reviewboard,chipx86/reviewboard,chipx86/reviewboard,1tush/reviewboard,1tush/reviewboard,davidt/reviewboard,brennie/reviewboard,bkochendorfer/reviewboard,sgallagher/reviewboard,beol/reviewboard,bkochendorfer/reviewboard,chipx86/reviewboard,chipx86/reviewboard,KnowNo/reviewboard,custode/reviewboard,davidt/reviewboard,beol/reviewboard,sgallagher/reviewboard,bkochendorfer/reviewboard,KnowNo/reviewboard,brennie/reviewboard,reviewboard/reviewboard,beol/reviewboard,custode/reviewboard,sgallagher/reviewboard,1tush/reviewboard,davidt/reviewboard,1tush/reviewboard,sgallagher/reviewboard,1tush/reviewboard,reviewboard/reviewboard,bkochendorfer/reviewboard,1tush/reviewboard,reviewboard/reviewboard