Also install leash.exe in 64 bit installer.

https://github.com/krb5/krb5/commit/8c6030f1d6f8531563297d984848b46b9ede86bf
Commit By: tlyu
Revision: 25568
Changed Files:
U   trunk/src/windows/installer/wix/features.wxi
U   trunk/src/windows/installer/wix/files.wxi
U   trunk/src/windows/installer/wix/platform.wxi
U   trunk/src/windows/leash/Lglobals.h
U   trunk/src/windows/leash/Makefile.in
U   trunk/src/windows/version.rc