Handle case where there is no snprintf()
libmysql.vcproj, mysqlclient.vcproj:
  Added __WIN__ symbol, needed when compiling dbug.c
dbug.vcproj:
  Changed __WIN32__ to __WIN__
dbug.c:
  Added Windows specific code to handle TIMESTAMP_ON log line format
make_win_src_distribution.sh:
  Copy plugin directory recursively
dbug.vcproj:
  Define __WIN__ for all targets


scripts/make_win_src_distribution.sh:
  Copy plugin directory recursively
dbug/dbug.c:
  Added Windows specific code to handle TIMESTAMP_ON log line format
VC++Files/client/mysqlclient.vcproj:
  Added __WIN__ symbol, needed when compiling dbug.c
VC++Files/dbug/dbug.vcproj:
  Changed __WIN32__ to __WIN__
VC++Files/libmysql/libmysql.vcproj:
  Added __WIN__ symbol, needed when compiling dbug.c
client/mysqlimport.c:
  Handle case where there is no snprintf()