check in the expriment code for authentication.
updated benjo authentication against multiple realms.
linked in active directory.
minor update.
allow group to role mapping bwtn AD and Banjo realms.
included suggested review changes, and also mapped user specific roles to an authenticated AD user.
Merge pull request #118 from nla/sz-sp25

Basic LDAP authentication support
Merge branch 'master' into huw-fileorder