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  -- LCD export an API to its domains that is accessible via
  capability invocations (well, syscalls if you like)

  -- Kernel runs a thread that implement this API, e.g. serves
  capability invocations

-- Mine is primitive but works, Muktesh will have to come
   back and rewrite
-- Cspace is an array, only insert and lookup are supported

Updated Kbuild, Kconfig, Makefiles.

Per Linux coding style spec. Updated files in
arch/x86/lcd, drivers/lcd, include/lcd.

Not ideal. Some problems:

  - The arch dependent and independent parts are not completely
    separated.

  - The module builds in arch/x86/lcd and this is a bit strange

  - I can't build with LCD buildin, but build works if I build it
    as a module

  - There is still a bunch of old warrnings from Weibin's code

Capability code in xcap/ moved to virt/lcd.

Arch-independent code in arch/x86/lcd moved
to virt/lcd (including tools and guest directories).

Renaming capability.c and capability.h to lcd_cap.c and lcd_cap.h to avoid conflict /linux/capability.h files

Conflicts:
	include/linux/init_task.h
	include/linux/sched.h
Resolved-by: Vikram Narayanan <vikram186@gmail.com>