Fix 'ritDn' parser for active member export button
Fix 'ritDn' parser for active member export button

As of 2018-09-01 the ritDn field in LDAP contains data in the following
format:
    ABC1234
Rather than the older (and incorrect in terms of DNs) format:
    uid=ABC1234,ou=people,dc=rit,dc=edu

This fixes an issue where accounts created under the new FreeIPA
infrastructure would populate the ritDn field with the uid of the member
in respect to their RIT account, but not in a full dn format.

ComputerScienceHouse/conditional,ComputerScienceHouse/conditional,ComputerScienceHouse/conditional