Applied patch to mysqlhotcopy


myisam/mi_open.c:
  Fixed some purify warnings
mysql-test/mysql-test-run.sh:
  Added --core as default to test suite
scripts/make_binary_distribution.sh:
  Added missing mysqlbinlog
scripts/mysqlhotcopy.sh:
  Applied patch with --record-log option
sql/item_timefunc.cc:
  Fixed problem with SEC_TO_TIME() for long signed integers.