Add license statements and related files
This CL adds AUTHORS, CONTRIBUTING.md, CONTRIBUTORS and LICENSE
per Google open-source releasing guidelines.
diff --git a/AUTHORS b/AUTHORS
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+# This is the official list of Mozc authors for copyright purposes.
+# This file is distinct from the CONTRIBUTORS files.
+# See the latter for an explanation.
+
+# Names should be added to this file as:
+# Name or Organization <email address>
+# The email address is not required for organizations.
+
+Google Inc.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+Contributing Guide
+==================
+
+## Pull Requests
+**Mozc team is not accepting pull requests at the moment.**
+
+Although Google Company policy technically allows Mozc team to accept pull
+requests as long as you can sign our CLA, it also requires additional logistics
+and Mozc team is not ready to afford it right now. Stay tuned for the update!
diff --git a/src/CONTRIBUTORS b/CONTRIBUTORS
similarity index 100%
rename from src/CONTRIBUTORS
rename to CONTRIBUTORS
diff --git a/LICENSE b/LICENSE
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+Copyright 2010-2015, Google 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 Google 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
+OWNER 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.
diff --git a/README.md b/README.md
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+[Mozc - a Japanese Input Method Editor designed for multi-platform](http://github.com/google/mozc)
+===================================
+
+Copyright 2010-2015, Google Inc.
+
+Mozc is a Japanese Input Method Editor (IME) designed for multi-platform such as
+Android OS, Apple OS X, Chromium OS, GNU/Linux and Microsoft Windows. This
+open-source project originates from
+[Google Japanese Input](http://www.google.com/intl/ja/ime/).
+
+For historical reasons, the project name *Mozc* has two different meanings:
+
+1. Internal code name of Google Japanese Input that is still commonly used
+ inside Google.
+2. Project name to release a subset of Google Japanese Input in the form of
+ source code under OSS license without any warranty nor user support.
+
+In this repository, *Mozc* means the second definition unless otherwise noted.
+
+#License
+All Mozc code written by Google is released under
+[The BSD 3-Clause License](http://opensource.org/licenses/BSD-3-Clause).
+For thrid party code under [src/third_party](src/third_party) directory,
+see each sub directory to find the copyright notice. Note also that
+outside [src/third_party](src/third_party) following directories contain
+thrid party code.
+
+###[src/data/dictionary_oss/](src/data/dictionary_oss)
+Mixed.
+See [src/data/dictionary_oss/README.txt](src/data/dictionary_oss/README.txt)
+
+###[src/data/test/dictionary/](src/data/test/dictionary)
+The same to [src/data/dictionary_oss/](src/data/dictionary_oss).
+See [src/data/dictionary_oss/README.txt](src/data/dictionary_oss/README.txt)
+
+###[src/data/test/stress_test/](src/data/test/stress_test)
+Public Domain. See the comment in
+[src/data/test/stress_test/sentences.txt](src/data/test/stress_test/sentences.txt)
+
+###[src/data/unicode/](src/data/unicode)
+UNICODE, INC. LICENSE AGREEMENT.
+See each file header for details.
