SPLUNK-198. Long usernames used to cause trouble with the UI. Every username length...

SPLUNK-198. Long usernames used to cause trouble with the UI. Every username length should be reasonable, but some users use radiculously long usernames. For such cases two new settings have been added to the Users Set. TRUNCATE_LONG_USERNAMES and TRUNCATE_USERNAMES_LONGER_THAN. This way we provide an easy interface that lets the admins specify whether the long usernames should be truncated and after which character that should happen.

git-svn-id: http://svn.osqa.net/svnroot/osqa/trunk@935 0cfe37f9-358a-4d5e-be75-b63607b5c754