remove old (new) unused file
auth utilities file ( issue #9 and #10 )
use authutils::testCredentials() and authutils::encryptPassword() instead of md5()

(issue #9 and #10 )
enforce minimum password version

( issue #9 and #10 )
in-place password upgrades (issue #9 and #10 )
Merge branch 'password-cleanup', fixes #9 and fixes #10
Merge branch 'master' of github.com:enwikipedia-acc/waca