This wrapper noew will include all the necessary, system specific files,
which makes all normal source files much easier to write and maintain.
Portability fixes.


Docs/manual.texi:
  Updated upgrading from 3.23 -> 4.0
client/mysqladmin.c:
  Portability fixes
client/mysqlshow.c:
  Portability fixes
extra/resolveip.c:
  Portability fixes
include/my_global.h:
  Portability fixes
include/my_net.h:
  One should not only have to include my_net.h to work with sockets.
  This wrapper noew will include all the necessary, system specific files,
  which makes all normal source files much easier to write and maintain.
include/mysql_com.h:
  Portability fixes
libmysql/net.c:
  Portability fixes
libmysqld/lib_vio.c:
  Portability fixes
mysql-test/r/drop.result:
  Fix crashed tests
mysql-test/r/err000001.result:
  Fix crashed tests
mysql-test/r/innodb.result:
  Fix crashed tests
mysql-test/r/overflow.result:
  Fix crashed tests
sql/net_serv.cc:
  Use new my_net.h
vio/vio.c:
  Use new my_net.h
vio/viosocket.c:
  Use new my_net.h
vio/viossl.c:
  Use new my_net.h