Disable NLS for all packages minus the runtime components.
    
    Followup to <2696b7e8fb2972e72fab7ca8b5a3ab87022814af>:
    - Restore src/process/_execve.c NT_SEC_IMAGE vs. NT_SEC_RESERVE patch for
      builds on lucio-vm.local. to allow for running Midipix from a network share.
    Move previous psxscl patches into psxscl.local@lucio-vm.local.patch.
    
    Prevent Irssi from using g_child_watch_add_full() when resolving hostnames
    for testing purposes as clone(2) is not currently implemented.
    
    Updated Create `Midipix mintty shell' shortcut.vbs:
    - Always update the shortcut file.
    - Launch sh(1) instead of Mintty (via Elieux.)
    - Obtain the pathname to Cygwin from the command line, defaulting to `C:\cygwin64'.
    
    Updated midipix.sh:
    - Automatically determine ${MIDIPIX_DRIVE} and ${MIDIPIX_PNAME} via cygpath(1) (via Elieux.)
    - Export MSYS2_ARG_CONV_EXCL="*" when running within Msys (via Elieux.)
    - Prepend `/bin' to ${PATH} if not present (via Elieux.)
    - Set and restore the previous cygdrive prefix.
    - Use /proc/cygdrive instead of /cygdrive (via Elieux.)