make CUI MD5 not reliant on case of User-Name

MD5 for CUI would change if User put their name in different case
added new dictionary entry

as per
http://support.f5.com/kb/en-us/solutions/public/11000/400/sol11431.html
Merge pull request #163 from alanbuxey/master

CUI MD5 shouldnt change if User plays with format of their identity  , new F5 dictionary entry