====================================================
Creative Commons Attribution-ShareAlike 3.0 Unported
====================================================

.. note::
   A summary of this license is available:

   * English: http://creativecommons.org/licenses/by-sa/3.0/
   * 中文: http://creativecommons.org/licenses/by-sa/3.0/deed.zh_TW

.. contents::

License
-------

THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS
CREATIVE COMMONS PUBLIC LICENSE ("CCPL" OR "LICENSE"). THE WORK IS
PROTECTED BY COPYRIGHT AND/OR OTHER APPLICABLE LAW. ANY USE OF THE
WORK OTHER THAN AS AUTHORIZED UNDER THIS LICENSE OR COPYRIGHT LAW
IS PROHIBITED.

BY EXERCISING ANY RIGHTS TO THE WORK PROVIDED HERE, YOU ACCEPT AND
AGREE TO BE BOUND BY THE TERMS OF THIS LICENSE. TO THE EXTENT THIS
LICENSE MAY BE CONSIDERED TO BE A CONTRACT, THE LICENSOR GRANTS YOU
THE RIGHTS CONTAINED HERE IN CONSIDERATION OF YOUR ACCEPTANCE OF
SUCH TERMS AND CONDITIONS.

1. Definitions
++++++++++++++

 a.
   **"Adaptation"** means a work based upon the Work, or upon the Work
   and other pre-existing works, such as a translation, adaptation,
   derivative work, arrangement of music or other alterations of a
   literary or artistic work, or phonogram or performance and includes
   cinematographic adaptations or any other form in which the Work may
   be recast, transformed, or adapted including in any form
   recognizably derived from the original, except that a work that
   constitutes a Collection will not be considered an Adaptation for
   the purpose of this License. For the avoidance of doubt, where the
   Work is a musical work, performance or phonogram, the
   synchronization of the Work in timed-relation with a moving image
   ("synching") will be considered an Adaptation for the purpose of
   this License.

 b.
   **"Collection"** means a collection of literary or artistic works,
   such as encyclopedias and anthologies, or performances, phonograms
   or broadcasts, or other works or subject matter other than works
   listed in Section 1(f) below, which, by reason of the selection and
   arrangement of their contents, constitute intellectual creations,
   in which the Work is included in its entirety in unmodified form
   along with one or more other contributions, each constituting
   separate and independent works in themselves, which together are
   assembled into a collective whole. A work that constitutes a
   Collection will not be considered an Adaptation (as defined below)
   for the purposes of this License.

 c.
   **"Creative Commons Compatible License"** means a license that is
   listed at http://creativecommons.org/compatiblelicenses that has
   been approved by Creative Commons as being essentially equivalent
   to this License, including, at a minimum, because that license: (i)
   contains terms that have the same purpose, meaning and effect as
   the License Elements of this License; and, (ii) explicitly permits
   the relicensing of adaptations of works made available under that
   license under this License or a Creative Commons jurisdiction
   license with the same License Elements as this License.

 d.
   **"Distribute"** means to make available to the public the original
   and copies of the Work or Adaptation, as appropriate, through sale
   or other transfer of ownership.

 e.
   **"License Elements"** means the following high-level license
   attributes as selected by Licensor and indicated in the title of
   this License: Attribution, ShareAlike.

 f.
   **"Licensor"** means the individual, individuals, entity or
   entities that offer(s) the Work under the terms of this License.

 g.
   **"Original Author"** means, in the case of a literary or artistic
   work, the individual, individuals, entity or entities who created
   the Work or if no individual or entity can be identified, the
   publisher; and in addition (i) in the case of a performance the
   actors, singers, musicians, dancers, and other persons who act,
   sing, deliver, declaim, play in, interpret or otherwise perform
   literary or artistic works or expressions of folklore; (ii) in the
   case of a phonogram the producer being the person or legal entity
   who first fixes the sounds of a performance or other sounds; and,
   (iii) in the case of broadcasts, the organization that transmits
   the broadcast.

 h.
   **"Work"** means the literary and/or artistic work offered under
   the terms of this License including without limitation any
   production in the literary, scientific and artistic domain,
   whatever may be the mode or form of its expression including
   digital form, such as a book, pamphlet and other writing; a
   lecture, address, sermon or other work of the same nature; a
   dramatic or dramatico-musical work; a choreographic work or
   entertainment in dumb show; a musical composition with or without
   words; a cinematographic work to which are assimilated works
   expressed by a process analogous to cinematography; a work of
   drawing, painting, architecture, sculpture, engraving or
   lithography; a photographic work to which are assimilated works
   expressed by a process analogous to photography; a work of applied
   art; an illustration, map, plan, sketch or three-dimensional work
   relative to geography, topography, architecture or science; a
   performance; a broadcast; a phonogram; a compilation of data to the
   extent it is protected as a copyrightable work; or a work performed
   by a variety or circus performer to the extent it is not otherwise
   considered a literary or artistic work.

 i.
   **"You"** means an individual or entity exercising rights under
   this License who has not previously violated the terms of this
   License with respect to the Work, or who has received express
   permission from the Licensor to exercise rights under this License
   despite a previous violation.

 j.
   **"Publicly Perform"** means to perform public recitations of the
   Work and to communicate to the public those public recitations, by
   any means or process, including by wire or wireless means or public
   digital performances; to make available to the public Works in such
   a way that members of the public may access these Works from a
   place and at a place individually chosen by them; to perform the
   Work to the public by any means or process and the communication to
   the public of the performances of the Work, including by public
   digital performance; to broadcast and rebroadcast the Work by any
   means including signs, sounds or images.

 k.
   **"Reproduce"** means to make copies of the Work by any means
   including without limitation by sound or visual recordings and the
   right of fixation and reproducing fixations of the Work, including
   storage of a protected performance or phonogram in digital form or
   other electronic medium.

2. Fair Dealing Rights
++++++++++++++++++++++

Nothing in this License is intended to reduce, limit, or restrict any
uses free from copyright or rights arising from limitations or
exceptions that are provided for in connection with the copyright
protection under copyright law or other applicable laws.

3. License Grant
++++++++++++++++

Subject to the terms and conditions of this License, Licensor hereby
grants You a worldwide, royalty-free, non-exclusive, perpetual (for
the duration of the applicable copyright) license to exercise the rights
in the Work as stated below:

 a.
   to Reproduce the Work, to incorporate the Work into one or more
   Collections, and to Reproduce the Work as incorporated in the
   Collections;

 b.
   to create and Reproduce Adaptations provided that any such
   Adaptation, including any translation in any medium, takes
   reasonable steps to clearly label, demarcate or otherwise identify
   that changes were made to the original Work. For example, a
   translation could be marked "The original work was translated from
   English to Spanish," or a modification could indicate "The original
   work has been modified.";

 c.
   to Distribute and Publicly Perform the Work including as
   incorporated in Collections; and,

 d.
   to Distribute and Publicly Perform Adaptations.

 e.
   For the avoidance of doubt:

   i.
      **Non-waivable Compulsory License Schemes**. In those jurisdictions
      in which the right to collect royalties through any statutory or
      compulsory licensing scheme cannot be waived, the Licensor reserves
      the exclusive right to collect such royalties for any exercise by
      You of the rights granted under this License;

   ii.
      **Waivable Compulsory License Schemes**. In those jurisdictions in
      which the right to collect royalties through any statutory or
      compulsory licensing scheme can be waived, the Licensor waives the
      exclusive right to collect such royalties for any exercise by You
      of the rights granted under this License; and,

   iii.
      **Voluntary License Schemes**. The Licensor waives the right to
      collect royalties, whether individually or, in the event that the
      Licensor is a member of a collecting society that administers
      voluntary licensing schemes, via that society, from any exercise by
      You of the rights granted under this License.


The above rights may be exercised in all media and formats whether
now known or hereafter devised. The above rights include the right
to make such modifications as are technically necessary to exercise
the rights in other media and formats. Subject to Section 8(f), all
rights not expressly granted by Licensor are hereby reserved.

4. Restrictions
+++++++++++++++

The license granted in Section 3 above is expressly made subject to and
limited by the following restrictions:

 a.
   You may Distribute or Publicly Perform the Work only under the
   terms of this License. You must include a copy of, or the Uniform
   Resource Identifier (URI) for, this License with every copy of the
   Work You Distribute or Publicly Perform. You may not offer or
   impose any terms on the Work that restrict the terms of this
   License or the ability of the recipient of the Work to exercise the
   rights granted to that recipient under the terms of the License.
   You may not sublicense the Work. You must keep intact all notices
   that refer to this License and to the disclaimer of warranties with
   every copy of the Work You Distribute or Publicly Perform. When You
   Distribute or Publicly Perform the Work, You may not impose any
   effective technological measures on the Work that restrict the
   ability of a recipient of the Work from You to exercise the rights
   granted to that recipient under the terms of the License. This
   Section 4(a) applies to the Work as incorporated in a Collection,
   but this does not require the Collection apart from the Work itself
   to be made subject to the terms of this License. If You create a
   Collection, upon notice from any Licensor You must, to the extent
   practicable, remove from the Collection any credit as required by
   Section 4(c), as requested. If You create an Adaptation, upon
   notice from any Licensor You must, to the extent practicable,
   remove from the Adaptation any credit as required by Section 4(c),
   as requested.

 b.
   You may Distribute or Publicly Perform an Adaptation only under the
   terms of: (i) this License; (ii) a later version of this License
   with the same License Elements as this License; (iii) a Creative
   Commons jurisdiction license (either this or a later license
   version) that contains the same License Elements as this License
   (e.g., Attribution-ShareAlike 3.0 US)); (iv) a Creative Commons
   Compatible License. If you license the Adaptation under one of the
   licenses mentioned in (iv), you must comply with the terms of that
   license. If you license the Adaptation under the terms of any of
   the licenses mentioned in (i), (ii) or (iii) (the "Applicable
   License"), you must comply with the terms of the Applicable License
   generally and the following provisions: (I) You must include a copy
   of, or the URI for, the Applicable License with every copy of each
   Adaptation You Distribute or Publicly Perform; (II) You may not
   offer or impose any terms on the Adaptation that restrict the terms
   of the Applicable License or the ability of the recipient of the
   Adaptation to exercise the rights granted to that recipient under
   the terms of the Applicable License; (III) You must keep intact all
   notices that refer to the Applicable License and to the disclaimer
   of warranties with every copy of the Work as included in the
   Adaptation You Distribute or Publicly Perform; (IV) when You
   Distribute or Publicly Perform the Adaptation, You may not impose
   any effective technological measures on the Adaptation that
   restrict the ability of a recipient of the Adaptation from You to
   exercise the rights granted to that recipient under the terms of
   the Applicable License. This Section 4(b) applies to the Adaptation
   as incorporated in a Collection, but this does not require the
   Collection apart from the Adaptation itself to be made subject to
   the terms of the Applicable License.

 c.
   If You Distribute, or Publicly Perform the Work or any Adaptations
   or Collections, You must, unless a request has been made pursuant
   to Section 4(a), keep intact all copyright notices for the Work and
   provide, reasonable to the medium or means You are utilizing: (i)
   the name of the Original Author (or pseudonym, if applicable) if
   supplied, and/or if the Original Author and/or Licensor designate
   another party or parties (e.g., a sponsor institute, publishing
   entity, journal) for attribution ("Attribution Parties") in
   Licensor's copyright notice, terms of service or by other
   reasonable means, the name of such party or parties; (ii) the title
   of the Work if supplied; (iii) to the extent reasonably
   practicable, the URI, if any, that Licensor specifies to be
   associated with the Work, unless such URI does not refer to the
   copyright notice or licensing information for the Work; and (iv) ,
   consistent with Ssection 3(b), in the case of an Adaptation, a
   credit identifying the use of the Work in the Adaptation (e.g.,
   "French translation of the Work by Original Author," or "Screenplay
   based on original Work by Original Author"). The credit required by
   this Section 4(c) may be implemented in any reasonable manner;
   provided, however, that in the case of a Adaptation or Collection,
   at a minimum such credit will appear, if a credit for all
   contributing authors of the Adaptation or Collection appears, then
   as part of these credits and in a manner at least as prominent as
   the credits for the other contributing authors. For the avoidance
   of doubt, You may only use the credit required by this Section for
   the purpose of attribution in the manner set out above and, by
   exercising Your rights under this License, You may not implicitly
   or explicitly assert or imply any connection with, sponsorship or
   endorsement by the Original Author, Licensor and/or Attribution
   Parties, as appropriate, of You or Your use of the Work, without
   the separate, express prior written permission of the Original
   Author, Licensor and/or Attribution Parties.

 d.
   Except as otherwise agreed in writing by the Licensor or as may be
   otherwise permitted by applicable law, if You Reproduce, Distribute
   or Publicly Perform the Work either by itself or as part of any
   Adaptations or Collections, You must not distort, mutilate, modify
   or take other derogatory action in relation to the Work which would
   be prejudicial to the Original Author's honor or reputation.
   Licensor agrees that in those jurisdictions (e.g. Japan), in which
   any exercise of the right granted in Section 3(b) of this License
   (the right to make Adaptations) would be deemed to be a distortion,
   mutilation, modification or other derogatory action prejudicial to
   the Original Author's honor and reputation, the Licensor will waive
   or not assert, as appropriate, this Section, to the fullest extent
   permitted by the applicable national law, to enable You to
   reasonably exercise Your right under Section 3(b) of this License
   (right to make Adaptations) but not otherwise.

5. Representations, Warranties and Disclaimer
+++++++++++++++++++++++++++++++++++++++++++++

UNLESS OTHERWISE MUTUALLY AGREED TO BY THE PARTIES IN WRITING,
LICENSOR OFFERS THE WORK AS-IS AND MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND CONCERNING THE WORK, EXPRESS, IMPLIED,
STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, WARRANTIES
OF TITLE, MERCHANTIBILITY, FITNESS FOR A PARTICULAR PURPOSE,
NONINFRINGEMENT, OR THE ABSENCE OF LATENT OR OTHER DEFECTS,
ACCURACY, OR THE PRESENCE OF ABSENCE OF ERRORS, WHETHER OR NOT
DISCOVERABLE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF
IMPLIED WARRANTIES, SO SUCH EXCLUSION MAY NOT APPLY TO YOU.

6. Limitation on Liability
++++++++++++++++++++++++++

EXCEPT TO THE EXTENT REQUIRED BY APPLICABLE LAW, IN NO EVENT WILL
LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY FOR ANY SPECIAL,
INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES ARISING OUT OF
THIS LICENSE OR THE USE OF THE WORK, EVEN IF LICENSOR HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES.

7. Termination
++++++++++++++

 a.
   This License and the rights granted hereunder will terminate
   automatically upon any breach by You of the terms of this License.
   Individuals or entities who have received Adaptations or
   Collections from You under this License, however, will not have
   their licenses terminated provided such individuals or entities
   remain in full compliance with those licenses. Sections 1, 2, 5, 6,
   7, and 8 will survive any termination of this License.

 b.
   Subject to the above terms and conditions, the license granted here
   is perpetual (for the duration of the applicable copyright in the
   Work). Notwithstanding the above, Licensor reserves the right to
   release the Work under different license terms or to stop
   distributing the Work at any time; provided, however that any such
   election will not serve to withdraw this License (or any other
   license that has been, or is required to be, granted under the
   terms of this License), and this License will continue in full
   force and effect unless terminated as stated above.

8. Miscellaneous
++++++++++++++++

 a.
   Each time You Distribute or Publicly Perform the Work or a
   Collection, the Licensor offers to the recipient a license to the
   Work on the same terms and conditions as the license granted to You
   under this License.

 b.
   Each time You Distribute or Publicly Perform an Adaptation,
   Licensor offers to the recipient a license to the original Work on
   the same terms and conditions as the license granted to You under
   this License.

 c.
   If any provision of this License is invalid or unenforceable under
   applicable law, it shall not affect the validity or enforceability
   of the remainder of the terms of this License, and without further
   action by the parties to this agreement, such provision shall be
   reformed to the minimum extent necessary to make such provision
   valid and enforceable.

 d.
   No term or provision of this License shall be deemed waived and no
   breach consented to unless such waiver or consent shall be in
   writing and signed by the party to be charged with such waiver or
   consent.

 e.
   This License constitutes the entire agreement between the parties
   with respect to the Work licensed here. There are no
   understandings, agreements or representations with respect to the
   Work not specified here. Licensor shall not be bound by any
   additional provisions that may appear in any communication from
   You. This License may not be modified without the mutual written
   agreement of the Licensor and You.

 f.
   The rights granted under, and the subject matter referenced, in
   this License were drafted utilizing the terminology of the Berne
   Convention for the Protection of Literary and Artistic Works (as
   amended on September 28, 1979), the Rome Convention of 1961, the
   WIPO Copyright Treaty of 1996, the WIPO Performances and Phonograms
   Treaty of 1996 and the Universal Copyright Convention (as revised
   on July 24, 1971). These rights and subject matter take effect in
   the relevant jurisdiction in which the License terms are sought to
   be enforced according to the corresponding provisions of the
   implementation of those treaty provisions in the applicable
   national law. If the standard suite of rights granted under
   applicable copyright law includes additional rights not granted
   under this License, such additional rights are deemed to be
   included in the License; this License is not intended to restrict
   the license of any rights under applicable law.
