Fixed wrong merge that disabled 'make test'
Renamed all suppress files to end in '.supp'
Don't give "skipped %d bytes from file" warnings in 5.0


mysql-test/purify.supp:
  Rename: mysql-test/suppress.purify -> mysql-test/purify.supp
support-files/compiler_warnings.supp:
  Rename: support-files/disabled_compiler_warnings.txt -> support-files/compiler_warnings.supp
Makefile.am:
  Added back missing cd from wrong merge
heap/hp_write.c:
  Fixed compiler warning
mysql-test/r/mysqlbinlog.result:
  Fixed test case to drop all used tables at start and used tables after each test group
mysql-test/t/mysqlbinlog.test:
  Fixed test case to drop all used tables at start and used tables after each test group
sql/net_serv.cc:
  Don't give "skipped %d bytes from file" warnings in 5.0
  (The proper fix for this is in 5.1)
sql/table.cc:
  Fixed compiler warning