Django plugin: no-op subtree merge

This is a no-op git subtree merge from upstream asa-db, in the hopes of making
pulling newer code with git subtree easier.

Merge commit 'abab96a3e55d8663f996684add635ff7eaf472f6'

* commit 'abab96a3e55d8663f996684add635ff7eaf472f6':
  Scripts auth: Use ldap-too for LDAP server
  Merge "upstream" fixes from SIPB's snippets
  localhost check needs to use portless-HTTP_HOST
  Add scripts_login, to do cert login if possible
  Shamelessly lift MIT-specific code from Remit