Eric Hubert cassandra_src all time

bd0804065daaa01ba478c0ed97f7411f1180eef9 | Author: Eric Hubert <eric.hubert@optivo.com>
 | 2018-03-23 18:24:17-07:00

    Allow logging implementation to be interchanged for embedded testing
    
    patch by Eric Hubert; reviewed by jasobrown for CASSANDRA-13396