Add Zend Engine license

Author: ramsey

license-files/zend.txt

@@ -0,0 +1,56 @@
+--------------------------------------------------------------------
+                The Zend Engine License, Version 2.00
+Copyright (c) 1999-2006 Zend Technologies Ltd. All rights reserved.
+--------------------------------------------------------------------
+
+Redistribution and use in source and binary forms, with or without
+modification, is permitted provided that the following conditions
+are met:
+
+  1. Redistributions of source code must retain the above copyright
+     notice, this list of conditions and the following disclaimer.
+
+  2. 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.
+
+  3. The names "Zend" and "Zend Engine" must not be used to endorse
+     or promote products derived from this software without prior
+     permission from Zend Technologies Ltd. For written permission,
+     please contact [email protected].
+
+  4. Zend Technologies Ltd. may publish revised and/or new versions
+     of the license from time to time. Each version will be given a
+     distinguishing version number.
+     Once covered code has been published under a particular version
+     of the license, you may always continue to use it under the
+     terms of that version. You may also choose to use such covered
+     code under the terms of any subsequent version of the license
+     published by Zend Technologies Ltd. No one other than Zend
+     Technologies Ltd. has the right to modify the terms applicable
+     to covered code created under this License.
+
+  5. Redistributions of any form whatsoever must retain the following
+     acknowledgment:
+     "This product includes the Zend Engine, freely available at
+     http://www.zend.com"
+
+  6. All advertising materials mentioning features or use of this
+     software must display the following acknowledgment:
+     "The Zend Engine is freely available at http://www.zend.com"
+
+THIS SOFTWARE IS PROVIDED BY ZEND TECHNOLOGIES LTD. ``AS IS'' AND
+ANY EXPRESSED 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 ZEND
+TECHNOLOGIES LTD.  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.
+
+--------------------------------------------------------------------