Ticket #324 - Sync with group attribute containing () fails
    
    https://fedorahosted.org/389/ticket/324
    Resolves: Ticket #324
    Bug Description: Sync with group attribute containing () fails
    Reviewed by: nhosoi (Thanks!)
    Branch: master
    Fix Description: When constructing the ldap filter used to retrieve the
    entry, the values must be filter escaped.
    Platforms tested: RHEL6 x86_64
    Flag Day: no
    Doc impact: no