Added suppression file for some valgrind warnings that are not real errors


mysql-test/mysql-test-run.sh:
  Added suppression of some valgrind warnings that are not real errors
mysql-test/r/heap.result:
  Cleanup old tests and added new tests
mysql-test/t/heap.test:
  Cleanup old tests and added new tests
mysys/default.c:
  Removed duplicate fn_format()
scripts/make_binary_distribution.sh:
  Added valgrind suppress file
sql/ha_federated.cc:
  Ensure that 'socket' is initialized properly
sql/ha_heap.cc:
  Ensure that with_auto_increment is initialized properly
sql/mysqld.cc:
  Ensure that create_time is initialized for cached threads
sql/sql_parse.cc:
  Indentation fix
strings/decimal.c:
  Fixed wrong tests