This patch removes the SLAVESIDE_DISABLED token from the event status clause
and adds the ability to mark an event as status = SLAVESIDE_DISABLED by using
the syntax DISABLE ON SLAVE instead.

The patch also adds tests to rpl_events to check the new syntax.


mysql-test/include/rpl_events.inc:
  WL#3629 - Replication of Invocation and Invoked Features
  
  This patch adds tests to check the SQL syntax change from SLAVESIDE_DISABLED 
  to DISABLE ON SLAVE.
mysql-test/r/rpl_events.result:
  WL#3629 - Replication of Invocation and Invoked Features
  
  This patch adds the results for the tests to check the SQL syntax change 
  from SLAVESIDE_DISABLED to DISABLE ON SLAVE.
sql/lex.h:
  WL#3629 - Replication of Invocation and Invoked Features
  
  This patch removes the SLAVESIDE_DISABLED token.
sql/sql_yacc.yy:
  WL#3629 - Replication of Invocation and Invoked Features
  
  This patch removes the SLAVESIDE_DISABLED token from the event status clause
  and adds the ability to mark an event as status = SLAVESIDE_DISABLED by using
  the syntax DISABLE ON SLAVE instead.