Change noVNC license to from LGPLv3 to MPL 2.0

The MPL 2.0 license is a "file-level" copyleft license vs the
"project-level" nature of the L/GPL. The intention of noVNC has
always been that it should be easy to incorporate into existing
projects and sites whether free/open or proprietary/commercial. The MPL
2.0 is designed for this sort of combination project but still
requires that any distributed modifications to noVNC source files must
also be published under the same license.

In addition, the MPL 2.0 allows the code to be used in L/GPL projects
(the secondary license clause). This means that any projects that are
already incorporating noVNC should not be impacted by this change and
in fact it should clarify the licensing situation (the exact
application of the L/GPL to web applications and interpreted code is
somewhat ambiguous).

The HTML, CSS, image and font files continue to be under more
permissive licenses (see LICENSE.txt). The included websockify python
code remains under a LGPLv3 license although the include/websock.js
file from the websockify component is now under MPL 2.0 as well.

Permission was received from other noVNC authors to make this change to their
code license on the following dates:

    - Chris Gordon (UI): Jun 24, 2012
    - Antoine Mercadal (DOM,*util.js): Oct 10, 2012
    - William Lightning (UltraVNC repeater): Oct 10, 2012
    - Mike Tinglof (tight encoding): Oct 15, 2012

LICENSE.txt

@@ -1,7 +1,7 @@
 noVNC is Copyright (C) 2011 Joel Martin <github@martintribe.org>
 
-The noVNC core library is licensed under the LGPLv3 (GNU Lesser
-General Public License). The noVNC core library is composed of the
+The noVNC core library files are licensed under the MPL 2.0 (Mozilla
+Public License 2.0). The noVNC core library is composed of the
 Javascript code necessary for full noVNC operation. This includes (but
 is not limited to):
 
@@ -36,21 +36,15 @@ The HTML, CSS, font and image files are licensed as follows:
     images/                    : Creative Commons Attribution-ShareAlike
                                  http://creativecommons.org/licenses/by-sa/3.0/
 
-In addition the following file, which is part of the noVNC core
-library, may be licensed under either the LGPL-2, LGPL-3 or MPL 2.0
-when it used separately from the noVNC core library.
-
-    include/input.js           : LGPL-2 or any later version
-   
 Some portions of noVNC are copyright to their individual authors.
 Please refer to the individual source files and/or to the noVNC commit
 history: https://github.com/kanaka/noVNC/commits/master
 
 The are several files and projects that have been incorporated into
 the noVNC core library. Here is a list of those files and the original
-licenses (all LGPL-3 compatible):
+licenses (all MPL 2.0 compatible):
 
-    include/base64.js          : MPL 1.1, GPL-2 or LGPL-2.1
+    include/base64.js          : MPL 2.0
    
     include/des.js             : Various BSD style licenses
 
@@ -62,21 +56,26 @@ licenses (all LGPL-3 compatible):
     include/chrome-app/tcp-stream.js
                                : Apache 2.0 license
 
+    utils/websockify
+    utils/websocket.py         : LGPL 3
+
 The following license texts are included:
 
+    docs/LICENSE.MPL-2.0
     docs/LICENSE.LGPL-3 and
     docs/LICENSE.GPL-3
     docs/LICENSE.OFL-1.1
     docs/LICENSE.BSD-3-Clause (New BSD)
     docs/LICENSE.BSD-2-Clause (Simplified BSD / FreeBSD)
     docs/LICENSE.zlib
-    docs/LICENSE.MPL-2.0
     docs/LICENSE.Apache-2.0
 
 Or alternatively the license texts may be found here:
 
+    http://www.mozilla.org/MPL/2.0/
     http://www.gnu.org/licenses/lgpl.html and
     http://www.gnu.org/licenses/gpl.html
     http://scripts.sil.org/OFL
-    http://www.mozilla.org/MPL/1.1/
-    http://www.mozilla.org/MPL/2.0/
+    http://en.wikipedia.org/wiki/BSD_licenses
+    http://www.gzip.org/zlib/zlib_license.html
+    http://www.apache.org/licenses/LICENSE-2.0.html