COPYING: Update to MIT Expat License rather than MIT X License

MIT has released software under several slightly different licenses,
including the old 'X11 License' or 'MIT License'.  Some code under this
license was in fact included in X.org's Xserver in the past.  However,
X.org now prefers the MIT Expat License as the standard (which,
confusingly, is also referred to as the 'MIT License').  See
http://cgit.freedesktop.org/xorg/xserver/tree/COPYING

When Wayland started, it was Kristian Høgsberg's intent to license it
compatibly with X.org.  "I wanted Wayland to be usable (license-wise)
whereever X was usable."  But, the text of the older X11 License was
taken for Wweston, rather than X11's current standard.  This patch
corrects this by swapping in the intended text.

In practical terms, the most notable change is the dropping of the
no-advertising clause.

Signed-off-by: Bryce Harrington <bryce@osg.samsung.com>

COPYING

@@ -3,23 +3,24 @@ Copyright © 2010-2012 Intel Corporation
 Copyright © 2010-2011 Benjamin Franzke
 Copyright © 2011-2012 Collabora, Ltd.
  
-Permission to use, copy, modify, distribute, and sell this software and its
+Permission is hereby granted, free of charge, to any person obtaining a
-documentation for any purpose is hereby granted without fee, provided that
+copy of this software and associated documentation files (the "Software"),
-the above copyright notice appear in all copies and that both that copyright
+to deal in the Software without restriction, including without limitation
-notice and this permission notice appear in supporting documentation, and
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
-that the name of the copyright holders not be used in advertising or
+and/or sell copies of the Software, and to permit persons to whom the
-publicity pertaining to distribution of the software without specific,
+Software is furnished to do so, subject to the following conditions:
-written prior permission.  The copyright holders make no representations
+
-about the suitability of this software for any purpose.  It is provided "as
+The above copyright notice and this permission notice (including the next
-is" without express or implied warranty.
+paragraph) shall be included in all copies or substantial portions of the
-
+Software.
-THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+
-INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-OF THIS SOFTWARE.
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
 
 
 For libbacklight.c: