Added paging to DNS record search facet
    
    Paging in DNS record search facet was disabled because there was a mismatch between primary keys sent by server and values displayed in the facet.
    
    The facet was modified to enable paging. To preserve amount of information which was displayed before, current rows have variable height - they can contain more that one line depending on number of values in the record. Each record has a checkbox and indsname in its first line to distinguish one record from others. Because there is only one checkbox for record, delete command is called with --rem-all option which causes that entire record is removed. Individual values can be deleted in record's details facet.
    
    https://fedorahosted.org/freeipa/ticket/2094