Add NOTICE.txt copyright and license. Add README.md export notice.

NOTICE.txt

+
+   Copyright 2013, Qualcomm Innovation Center, Inc.
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+     * Neither the name of the Qualcomm Innovation Center, Inc. nor the names of
+       its contributors may be used to endorse or promote products derived from
+       this software without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+   POSSIBILITY OF SUCH DAMAGE.
+
+   ============================================================================
+
+   All documentation contained herein is licensed under the Creative Commons
+   Attribution-ShareAlike 3.0 Unported License (the "CC BY-SA License");
+   provided,
+   that (i) any source code incorporated in this documentation is licensed
+            under the Apache License version 2.0 except as noted below under
+            Exceptions
+   and (ii) THIS DOCUMENTATION AND ALL INFORMATION CONTAINED HEREIN ARE
+            PROVIDED ON AN "AS-IS" BASIS WITHOUT WARRANTY OF ANY KIND.
+
+   To view a copy of this license, visit
+
+      http://creativecommons.org/licenses/by-sa/3.0/
+
+   or send a letter to
+
+      Creative Commons
+      171 Second Street, Suite 300
+      San Francisco
+      California, 94105, USA
+

README.md

+Notice of Export Control Law  
+============================
+Cryptographic software is subject to the US government export control and
+economic sanctions laws (“US export laws”) including the US Department of
+Commerce Bureau of Industry and Security’s (“BIS”) Export Administration
+Regulations (“EAR”, 15 CFR 730 et seq., http://www.bis.doc.gov/).  You may
+also be subject to US export laws, including the requirements of license
+exception TSU in accordance with part 740.13(e) of the EAR.  Software
+and/or technical data subject to the US export laws may not be directly or
+indirectly exported, reexported, transferred, or released (“exported”) to
+US embargoed or sanctioned destinations currently including Cuba, Iran,
+North Korea, Sudan, or Syria, but any amendments to this list shall apply.
+In addition, software and/or technical data may not be exported to any
+entity barred by the US government from participating in export activities.
+Denied persons or entities include those listed on BIS’s Denied Persons and
+Entities Lists, and the US Department of Treasury’s Office of Foreign
+Assets Control’s Specially Designated Nationals List.  The country in which
+you are currently located may have restrictions on the import, possession,
+use of encryption software. You are responsible for compliance with the
+laws where You are located.