start slave thread if master.info is present and server_id is set
updates for rpl000015 and rpl000016 to remove master.info to make sure
master info struct does not get auto-initialized


Docs/manual.texi:
  updates for recent changes
mysql-test/r/rpl000001.result:
  update for test case change
mysql-test/t/rpl000001.test:
  fixed bugs in the test case
mysql-test/t/rpl000015.test:
  wrong change - to be reversed
sql/mysqld.cc:
  start slave thread if master.info is present and server_id is set
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted