Don't flush cur_log (relay log) on flush_relay_log_info becasue this crashes the server if cur_log is 'hot' and the io_thread has changed log file.
Updated project files for windows
Made rpl_change_master.test portable
Ensure that mutex are not freed if not initilized


VC++Files/client/mysql.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/comp_err/comp_err.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/innobase/innobase.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/libmysqld/examples/test_libmysqld.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/libmysqld/libmysqld.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/myisamchk/myisamchk.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/myisamlog/myisamlog.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/myisampack/myisampack.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/mysqlmanager/MySqlManager.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/mysqlshutdown/mysqlshutdown.dsp:
  Updated project files for windows according to suggestions from Intel
VC++Files/mysys/mysys.dsp:
  Updated project files for windows according to suggestions from Intel
libmysql/libmysql.c:
  Removed not used include files (which caused problems on Win64)
mysql-test/r/rpl_change_master.result:
  Made test portable
mysql-test/t/rpl_change_master.test:
  Made test portable
sql-common/client.c:
  Removed not used include files (which caused problems on Win64)
sql/ha_innodb.cc:
  Ensure that mutex is not freed if not initilized
sql/hostname.cc:
  Ensure that mutex is not freed if not initilized
sql/slave.cc:
  Don't flush cur_log (relay log) on flush_relay_log_info becasue this crashes the server if cur_log is 'hot' and the io_thread has changed log file.