Some users requested this. Also, the hider window is mapped before
warping the mouse so the active window shouldn't change if the focus
policy is point-to-focus. Showing the window first can also reduce
the likelihood of seeing the cursor briefly in its hidden position.
key handling to win32 on both client and server. It also changes
the protocol and adds code to ensure every key pressed also gets
released and that that doesn't get confused when the KeyID for
the press is different from the KeyID of the release (or repeat).
and the platform specific implementations to lib/platform.
Added an lib/arch method to query the platform's native wide
character encoding and changed CUnicode to use it. All
platform dependent code is now in lib/arch, lib/platform,
and the programs under cmd. Also added more documentation.
