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Added LICENCE file.

Robert Iv├ínek authored on 20/05/2020 21:34:24 • GitHub committed on 20/05/2020 21:34:24
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+		       The Artistic License 2.0
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+
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+	    Copyright (c) 2000-2006, The Perl Foundation.
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+
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+     Everyone is permitted to copy and distribute verbatim copies
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+      of this license document, but changing it is not allowed.
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+
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+Preamble
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+
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+This license establishes the terms under which a given free software
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+Package may be copied, modified, distributed, and/or redistributed.
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+The intent is that the Copyright Holder maintains some artistic
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+control over the development of that Package while still keeping the
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+Package available as open source and free software.
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+
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+You are always permitted to make arrangements wholly outside of this
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+license directly with the Copyright Holder of a given Package.  If the
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+terms of this license do not permit the full use that you propose to
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+make of the Package, you should contact the Copyright Holder and seek
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+a different licensing arrangement.
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+
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+Definitions
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+
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+    "Copyright Holder" means the individual(s) or organization(s)
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+    named in the copyright notice for the entire Package.
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+
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+    "Contributor" means any party that has contributed code or other
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+    material to the Package, in accordance with the Copyright Holder's
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+    procedures.
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+
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+    "You" and "your" means any person who would like to copy,
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+    distribute, or modify the Package.
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+
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+    "Package" means the collection of files distributed by the
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+    Copyright Holder, and derivatives of that collection and/or of
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+    those files. A given Package may consist of either the Standard
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+    Version, or a Modified Version.
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+
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+    "Distribute" means providing a copy of the Package or making it
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+    accessible to anyone else, or in the case of a company or
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+    organization, to others outside of your company or organization.
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+
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+    "Distributor Fee" means any fee that you charge for Distributing
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+    this Package or providing support for this Package to another
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+    party.  It does not mean licensing fees.
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+
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+    "Standard Version" refers to the Package if it has not been
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+    modified, or has been modified only in ways explicitly requested
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+    by the Copyright Holder.
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+
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+    "Modified Version" means the Package, if it has been changed, and
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+    such changes were not explicitly requested by the Copyright
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+    Holder.
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+
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+    "Original License" means this Artistic License as Distributed with
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+    the Standard Version of the Package, in its current version or as
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+    it may be modified by The Perl Foundation in the future.
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+
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+    "Source" form means the source code, documentation source, and
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+    configuration files for the Package.
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+    "Compiled" form means the compiled bytecode, object code, binary,
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+    or any other form resulting from mechanical transformation or
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+Permission for Use and Modification Without Distribution
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+(1)  You are permitted to use the Standard Version and create and use
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+Modified Versions for any purpose without restriction, provided that
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+you do not Distribute the Modified Version.
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+Permissions for Redistribution of the Standard Version
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+(2)  You may Distribute verbatim copies of the Source form of the
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+Standard Version of this Package in any medium without restriction,
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+either gratis or for a Distributor Fee, provided that you duplicate
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+all of the original copyright notices and associated disclaimers.  At
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+your discretion, such verbatim copies may or may not include a
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+Compiled form of the Package.
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+
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+(3)  You may apply any bug fixes, portability changes, and other
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+modifications made available from the Copyright Holder.  The resulting
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+Package will still be considered the Standard Version, and as such
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+will be subject to the Original License.
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+
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+
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+Distribution of Modified Versions of the Package as Source
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+
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+(4)  You may Distribute your Modified Version as Source (either gratis
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+or for a Distributor Fee, and with or without a Compiled form of the
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+Modified Version) provided that you clearly document how it differs
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+from the Standard Version, including, but not limited to, documenting
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+any non-standard features, executables, or modules, and provided that
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+you do at least ONE of the following:
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+
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+    (a)  make the Modified Version available to the Copyright Holder
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+    of the Standard Version, under the Original License, so that the
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+    Copyright Holder may include your modifications in the Standard
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+    Version.
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+
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+    (b)  ensure that installation of your Modified Version does not
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+    prevent the user installing or running the Standard Version. In
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+    addition, the Modified Version must bear a name that is different
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+    from the name of the Standard Version.
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+    (c)  allow anyone who receives a copy of the Modified Version to
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+    make the Source form of the Modified Version available to others
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+    under
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+	(i)  the Original License or
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+	(ii)  a license that permits the licensee to freely copy,
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+	modify and redistribute the Modified Version using the same
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+	licensing terms that apply to the copy that the licensee
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+	received, and requires that the Source form of the Modified
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+	Version, and of any works derived from it, be made freely
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+	available in that license fees are prohibited but Distributor
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+	Fees are allowed.
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+
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+
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+Distribution of Compiled Forms of the Standard Version
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+or Modified Versions without the Source
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+
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+(5)  You may Distribute Compiled forms of the Standard Version without
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+the Source, provided that you include complete instructions on how to
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+get the Source of the Standard Version.  Such instructions must be
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+valid at the time of your distribution.  If these instructions, at any
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+time while you are carrying out such distribution, become invalid, you
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+must provide new instructions on demand or cease further distribution.
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+If you provide valid instructions or cease distribution within thirty
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+days after you become aware that the instructions are invalid, then
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+you do not forfeit any of your rights under this license.
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+
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+(6)  You may Distribute a Modified Version in Compiled form without
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+the Source, provided that you comply with Section 4 with respect to
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+the Source of the Modified Version.
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+Aggregating or Linking the Package
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+(7)  You may aggregate the Package (either the Standard Version or
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+aggregation provided that you do not charge a licensing fee for the
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+Package.  Distributor Fees are permitted, and licensing fees for other
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+components in the aggregation are permitted. The terms of this license
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+apply to the use and Distribution of the Standard or Modified Versions
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+as included in the aggregation.
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+
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+(8) You are permitted to link Modified and Standard Versions with
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+other works, to embed the Package in a larger work of your own, or to
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+include the Package, and Distribute the result without restriction,
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+provided the result does not expose a direct interface to the Package.
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+Items That are Not Considered Part of a Modified Version
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+
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+(9) Works (including, but not limited to, modules and scripts) that
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+merely extend or make use of the Package, do not, by themselves, cause
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+the Package to be a Modified Version.  In addition, such works are not
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+considered parts of the Package itself, and are not subject to the
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+terms of this license.
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+
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+
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+General Provisions
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+
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+(10)  Any use, modification, and distribution of the Standard or
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+Modified Versions is governed by this Artistic License. By using,
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+modifying or distributing the Package, you accept this license. Do not
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+use, modify, or distribute the Package, if you do not accept this
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+license.
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+
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+(11)  If your Modified Version has been derived from a Modified
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+Version made by someone other than you, you are nevertheless required
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+to ensure that your Modified Version complies with the requirements of
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+this license.
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+
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+(12)  This license does not grant you the right to use any trademark,
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+service mark, tradename, or logo of the Copyright Holder.
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+
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+(13)  This license includes the non-exclusive, worldwide,
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+free-of-charge patent license to make, have made, use, offer to sell,
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+sell, import and otherwise transfer the Package with respect to any
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+patent claims licensable by the Copyright Holder that are necessarily
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+infringed by the Package. If you institute patent litigation
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+(including a cross-claim or counterclaim) against any party alleging
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+that the Package constitutes direct or contributory patent
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+infringement, then this Artistic License to you shall terminate on the
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+date that such litigation is filed.
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+
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+(14)  Disclaimer of Warranty:
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+THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
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+IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED
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+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
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+NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL
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+LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL
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+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
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+DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF
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+ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.