mysqlcheck and myisamchk to use new my_getopt struct.


client/client_priv.h:
  Changes for my_getopt
client/mysql.cc:
  Uses new my_getopt
client/mysqladmin.c:
  Uses new my_getopt
client/mysqlcheck.c:
  Uses new my_getopt
client/mysqldump.c:
  Uses new my_getopt
client/mysqlimport.c:
  Uses new my_getopt
client/mysqlshow.c:
  Uses new my_getopt
include/my_getopt.h:
  Added GET_BOOL type
include/sslopt-case.h:
  This is shouldn't be needed anymore.
include/sslopt-longopts.h:
  Uses new my_getopt
myisam/myisamchk.c:
  Uses new my_getopt
mysys/my_getopt.c:
  Some bug fixes and small feature adds to my_getopt
sql/mysqld.cc:
  mysqld.cc will be changed next. sslopt-* had to be removed
  temporarily.