fixed bug with setting the LDAP protocol version on a connection.
clarified purpose/usage of user sync ldap settings in code docs. refs #3219
replaced ldap url builder logic with simple check for ldap hostname format. refs #3219
Merge pull request #94 from ucsflibtopfstedt/bug3219

LDAP client configuration-cleanup/bugfix
Merge branch 'master' into ilios-tests