conf dir on far end is now called propagatedconf; converted to an absolute path before handing off to hbase via —config
add hook so that getMasterAddress() returns null if there is no master tracker
Merge branch 'feature/BUG-10965' into develop

* feature/BUG-10965:
  add hook so that getMasterAddress() returns null if there is no master tracker
  conf dir on far end is now called propagatedconf; converted to an absolute path before handing off to hbase via —config