fixed skip counter to do the RightThing (TM) when the user messes up.
Still do RightThing when he gets it right.


mysql-test/r/rpl000016.result:
  updated test result
mysql-test/t/rpl000013.test:
  test alias bug
mysql-test/t/rpl000016.test:
  test for proper skip when the user messes up
sql/slave.cc:
  proper skip even when the user goofs up
sql/sql_base.cc:
  drop real name, not last used alias in the log