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                          GNU LESSER GENERAL PUBLIC LICENSE
 
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                              Version 3, 29 June 2007
 
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        Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
 
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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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         This version of the GNU Lesser General Public License incorporates
 
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       the terms and conditions of version 3 of the GNU General Public
 
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       License, supplemented by the additional permissions listed below.
 
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         0. Additional Definitions.
 
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         As used herein, "this License" refers to version 3 of the GNU Lesser
 
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       General Public License, and the "GNU GPL" refers to version 3 of the GNU
 
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       General Public License.
 
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         "The Library" refers to a covered work governed by this License,
 
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       other than an Application or a Combined Work as defined below.
 
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         An "Application" is any work that makes use of an interface provided
 
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       by the Library, but which is not otherwise based on the Library.
 
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       Defining a subclass of a class defined by the Library is deemed a mode
 
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       of using an interface provided by the Library.
 
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         A "Combined Work" is a work produced by combining or linking an
 
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       Application with the Library.  The particular version of the Library
 
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       with which the Combined Work was made is also called the "Linked
 
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       Version".
 
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         The "Minimal Corresponding Source" for a Combined Work means the
 
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       Corresponding Source for the Combined Work, excluding any source code
 
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       for portions of the Combined Work that, considered in isolation, are
 
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       based on the Application, and not on the Linked Version.
 
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         The "Corresponding Application Code" for a Combined Work means the
 
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       object code and/or source code for the Application, including any data
 
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       and utility programs needed for reproducing the Combined Work from the
 
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       Application, but excluding the System Libraries of the Combined Work.
 
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         1. Exception to Section 3 of the GNU GPL.
 
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         You may convey a covered work under sections 3 and 4 of this License
 
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       without being bound by section 3 of the GNU GPL.
 
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         2. Conveying Modified Versions.
 
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         If you modify a copy of the Library, and, in your modifications, a
 
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       facility refers to a function or data to be supplied by an Application
 
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       that uses the facility (other than as an argument passed when the
 
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       facility is invoked), then you may convey a copy of the modified
 
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       version:
 
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          a) under this License, provided that you make a good faith effort to
 
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          ensure that, in the event an Application does not supply the
 
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          function or data, the facility still operates, and performs
 
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          whatever part of its purpose remains meaningful, or
 
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          b) under the GNU GPL, with none of the additional permissions of
 
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          this License applicable to that copy.
 
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         3. Object Code Incorporating Material from Library Header Files.
 
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         The object code form of an Application may incorporate material from
 
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       a header file that is part of the Library.  You may convey such object
 
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       code under terms of your choice, provided that, if the incorporated
 
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       material is not limited to numerical parameters, data structure
 
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       layouts and accessors, or small macros, inline functions and templates
 
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       (ten or fewer lines in length), you do both of the following:
 
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          a) Give prominent notice with each copy of the object code that the
 
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          Library is used in it and that the Library and its use are
 
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          covered by this License.
 
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          b) Accompany the object code with a copy of the GNU GPL and this license
 
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          document.
 
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         4. Combined Works.
 
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         You may convey a Combined Work under terms of your choice that,
 
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       taken together, effectively do not restrict modification of the
 
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       portions of the Library contained in the Combined Work and reverse
 
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       engineering for debugging such modifications, if you also do each of
 
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       the following:
 
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          a) Give prominent notice with each copy of the Combined Work that
 
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          the Library is used in it and that the Library and its use are
 
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          covered by this License.
 
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          b) Accompany the Combined Work with a copy of the GNU GPL and this license
 
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          document.
 
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          c) For a Combined Work that displays copyright notices during
 
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          execution, include the copyright notice for the Library among
 
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          these notices, as well as a reference directing the user to the
 
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          copies of the GNU GPL and this license document.
 
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          d) Do one of the following:
 
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              0) Convey the Minimal Corresponding Source under the terms of this
 
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              License, and the Corresponding Application Code in a form
 
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              suitable for, and under terms that permit, the user to
 
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              recombine or relink the Application with a modified version of
 
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              the Linked Version to produce a modified Combined Work, in the
 
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              manner specified by section 6 of the GNU GPL for conveying
 
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              Corresponding Source.
 
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              1) Use a suitable shared library mechanism for linking with the
 
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              Library.  A suitable mechanism is one that (a) uses at run time
 
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              a copy of the Library already present on the user's computer
 
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              system, and (b) will operate properly with a modified version
 
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              of the Library that is interface-compatible with the Linked
 
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              Version.
 
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          e) Provide Installation Information, but only if you would otherwise
 
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          be required to provide such information under section 6 of the
 
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          GNU GPL, and only to the extent that such information is
 
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          necessary to install and execute a modified version of the
 
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          Combined Work produced by recombining or relinking the
 
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          Application with a modified version of the Linked Version. (If
 
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          you use option 4d0, the Installation Information must accompany
 
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          the Minimal Corresponding Source and Corresponding Application
 
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          Code. If you use option 4d1, you must provide the Installation
 
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          Information in the manner specified by section 6 of the GNU GPL
 
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          for conveying Corresponding Source.)
 
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         5. Combined Libraries.
 
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         You may place library facilities that are a work based on the
 
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       Library side by side in a single library together with other library
 
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       facilities that are not Applications and are not covered by this
 
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       License, and convey such a combined library under terms of your
 
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       choice, if you do both of the following:
 
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          a) Accompany the combined library with a copy of the same work based
 
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          on the Library, uncombined with any other library facilities,
 
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          conveyed under the terms of this License.
 
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          b) Give prominent notice with the combined library that part of it
 
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          is a work based on the Library, and explaining where to find the
 
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          accompanying uncombined form of the same work.
 
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         6. Revised Versions of the GNU Lesser General Public License.
 
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         The Free Software Foundation may publish revised and/or new versions
 
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       of the GNU Lesser General Public License from time to time. Such new
 
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       versions will be similar in spirit to the present version, but may
 
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       differ in detail to address new problems or concerns.
 
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         Each version is given a distinguishing version number. If the
 
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       Library as you received it specifies that a certain numbered version
 
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       of the GNU Lesser General Public License "or any later version"
 
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       applies to it, you have the option of following the terms and
 
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       conditions either of that published version or of any later version
 
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       published by the Free Software Foundation. If the Library as you
 
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       received it does not specify a version number of the GNU Lesser
 
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       General Public License, you may choose any version of the GNU Lesser
 
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       General Public License ever published by the Free Software Foundation.
 
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         If the Library as you received it specifies that a proxy can decide
 
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       whether future versions of the GNU Lesser General Public License shall
 
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       apply, that proxy's public statement of acceptance of any version is
 
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       permanent authorization for you to choose that version for the
 
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       Library.
 
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