Push YUI compressor (BSD license)

yui/YUI-LICENSE

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+YUI Compressor Copyright License Agreement (BSD License)
+
+Copyright (c) 2013, Yahoo! Inc.
+All rights reserved.
+
+Redistribution and use of this software 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 Yahoo! Inc. nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of Yahoo! Inc.
+
+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.
+
+This software also requires access to software from the following sources:
+
+The Jarg Library v 1.0 ( http://jargs.sourceforge.net/ ) is available
+under a BSD License <20> Copyright (c) 2001-2003 Steve Purcell,
+Copyright (c) 2002 Vidar Holen, Copyright (c) 2002 Michal Ceresna and
+Copyright (c) 2005 Ewan Mellor.
+
+The Rhino Library ( http://www.mozilla.org/rhino/ ) is dually available
+under an MPL 1.1/GPL 2.0 license, with portions subject to a BSD license.
+
+Additionally, this software contains modified versions of the following
+component files from the Rhino Library:
+
+[org/mozilla/javascript/Decompiler.java]
+[org/mozilla/javascript/Parser.java]
+[org/mozilla/javascript/Token.java]
+[org/mozilla/javascript/TokenStream.java]
+
+The modified versions of these files are distributed under the MPL v 1.1
+( http://www.mozilla.org/MPL/MPL-1.1.html )