This patch changes test to remove Windows-specific limitations and potential
rounding errors in the calculation of a UDF.

Also corrects a minor merge conflict.


mysql-test/include/rpl_udf.inc:
  WL#3629 - Replication of Invocation and Invoked Features
      
  This patch changes test to remove Windows-specific results by replacing the
  library name in the SELECT from mysql.func to "UDF_LIB" to allow for the 
  differences in platform (.so vs .dll).
  
  The patch also changes the function body of myfuncsql_double to a calculation
  that does not result in potential rounding errors from the test data.
mysql-test/r/rpl_udf.result:
  WL#3629 - Replication of Invocation and Invoked Features
      
  This patch changes the result file for the test to match the new expected
  values for the SELECT from mysql.func and the return of myfuncsql_double.
scripts/mysql_system_tables_fix.sql:
  WL#3629 - Replication of Invocation and Invoked Features
      
  This patch corrects a merge error encountered in a previous merge. The
  column originator should be listed before time_zone in mysql.event.