Bugzilla 887361 - Slapd Crashes During Multimaster replication
    
    Bug Description:  When the server tries to replicate invalid DN syntax values,
                      the values are coverted to NULL and dereferenced -> crash.
    
    Fix Description:  Skip the normalization in the replication plugin to avoid the crash.
                      Then a config setting was added to allow the invalid values to be
                      added and replicated.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=887361
    
    Reviewed by: richm(Thanks!)