us.dvorak.kbd: The "standard" (note the quotes, there really isn't any
standard for non-alphanumeric keys in the Dvorak
world) version, identical to what MicroSoft
distributes in their DOS-6.22 supplementary disk.
us.dvorakx.kbd: The version I use, three pairs swapped (esc <-> `~,
clock <-> lctrl, and =+ <-> \|) from the above.
