Fixed that status variables 'empty_queries', 'access_denied_errors' and 'lost_connections' are propageted to global status.
This should also remove some warnings with VC++



sql/mysqld.cc:
  Increased precision for status variables Rows_sent and Rows_read from long to longlong
sql/sql_class.cc:
  Increased precision for status variables Rows_sent and Rows_read from long to longlong
sql/sql_class.h:
  Increased precision for status variables Rows_sent and Rows_read from long to longlong
  Fixed that status variables 'empty_queries', 'access_denied_errors' and 'lost_connections' are propageted to global status.