Bug 725953 - Winsync: DS entries fail to sync to AD, if the User's CN entry contains a comma
    
    https://bugzilla.redhat.com/show_bug.cgi?id=725953
    Resolves: bug 725953
    Bug Description: Winsync: DS entries fail to sync to AD, if the User's CN entry contains a comma
    Reviewed by: nhosoi (Thanks!)
    Branch: ds-replication-RHEL-6
    Fix Description: When we construct a new AD DN, usually from the value of the
    "cn" attribute in the entry, we need to escape the , and any other special
    characters in the value used in the DN.  We do this by putting double
    quotes around the value, and let slapi_create_dn_string remove the quotes
    and use \ escapes instead.
    Platforms tested: RHEL6 x86_64, Windows 2008 x86_64
    Flag Day: no
    Doc impact: no
    (cherry picked from commit 7a0548ba3df54de5883c3a16a1c1951af9327dfc)