When running Stored Routines the Status Variable "Questions" was wrongly
incremented. According to the manual it should contain the "number of
statements that clients have sent to the server"
              
Introduced a new status variable 'questions' to replace the query_id
variable which currently corresponds badly with the number of statements
sent by the client.
            
The new behavior is ment to be backward compatible with 4.0 and at the
same time work with new features in a similar way.
            
This is a backport from 6.0

mysql-test/r/status2.result:
  Added test case
mysql-test/t/status2.test:
  Added test case
sql/mysqld.cc:
  Introduced a new status variable 'questions' to replace the query_id
  variable which currently corresponds badly with the number of statements
  sent by the client.
sql/sql_class.h:
  Introduced a new status variable 'questions' to replace the query_id
  variable which currently corresponds badly with the number of statements
  sent by the client.
sql/sql_parse.cc:
  To be backward compatible with 4.0 and at the same time extend the 
  interpretation of the Question variable, it should be increased on
  all COM-commands but COM_STATISTICS, COM_PING, COM_STMT_PREPARE,
  COM_STMT_CLOSE and COM_STMT_RESET.
  Since COM_QUERY can process multiple statements, there has to be an
  extra increase there as well.
sql/sql_show.cc:
  Removed deprecated SHOW_QUESTION status code.
sql/structs.h:
  Removed deprecated SHOW_QUESTION status code.