Now is the whole class name, not a suffix. This allows you to do things
like $wgExternalAuthType::someStaticMethod() instead of having to fiddle
with temporary variables.
This will obviously break anything that has $wgExternalAuthType already
configured, so if that's anyone but me, make sure to fix your configs.
This is still experimental.
This just lets you enter the database by hand in LocalSettings.php, for
testing. Now other people can actually test ExternalAuth without having
a vBulletin license. 23 lines not counting whitespace/comments/closing
braces, and took me ~20 minutes to write.
