VIM LICENSE

   I) There are no restrictions on distributing unmodified copies of
   Vim except that they must include this license text. You can also
   distribute unmodified parts of Vim , likewise unrestricted except
   that they must include this license text. You are also allowed to
   include executables that you made from the unmodified Vim sources,
   plus your own usage examples and Vim scripts.

   II) It is allowed to distribute a modified (or extended) version of
   Vim , including executables and/or source code, when the following
   four conditions are met:

      1) This license text must be included unmodified.

      2) The modified Vim must be distributed in one of the following
      five ways:

         a) If you make changes to Vim yourself, you must clearly describe
         in the distribution how to contact you. When the maintainer asks
         you (in any way) for a copy of the modified Vim you distributed,
         you must make your changes, including source code, available
         to the maintainer without fee. The maintainer reserves the
         right to include your changes in the official version of Vim
         . What the maintainer will do with your changes and under what
         license they will be distributed is negotiable. If there has
         been no negotiation then this license, or a later version,
         also applies to your changes. The current maintainer is Bram
         Moolenaar <Bram@vim.org>. If this changes it will be announced in
         appropriate places (most likely vim.sf.net, www.vim.org and/or
         comp.editors). When it is completely impossible to contact the
         maintainer, the obligation to send him your changes ceases. Once
         the maintainer has confirmed that he has received your changes
         they will not have to be sent again.

         b) If you have received a modified Vim that was distributed
         as mentioned under a) you are allowed to further distribute it
         unmodified, as mentioned at I). If you make additional changes
         the text under a) applies to those changes.

         c) Provide all the changes, including source code, with every
         copy of the modified Vim you distribute. This may be done in
         the form of a context diff. You can choose what license to use
         for new code you add. The changes and their license must not
         restrict others from making their own changes to the official
         version of Vim .

         d) When you have a modified Vim which includes changes as
         mentioned under c), you can distribute it without the source
         code for the changes if the following three conditions are met:

            - The license that applies to the changes permits you to
            distribute the changes to the Vim maintainer without fee
            or restriction, and permits the Vim maintainer to include
            the changes in the official version of Vim without fee
            or restriction.

            - You keep the changes for at least three years after last
            distributing the corresponding modified Vim . When the
            maintainer or someone who you distributed the modified Vim
            to asks you (in any way) for the changes within this period,
            you must make them available to him.

            - You clearly describe in the distribution how to contact
            you. This contact information must remain valid for at least
            three years after last distributing the corresponding modified
            Vim , or as long as possible.

         e) When the GNU General Public License (GPL) applies to the
         changes, you can distribute the modified Vim under the GNU GPL
         version 2 or any later version.

      3) A message must be added, at least in the output of the ":version"
      command and in the intro screen, such that the user of the modified
      Vim is able to see that it was modified. When distributing as
      mentioned under 2)e) adding the message is only required for as
      far as this does not conflict with the license used for the changes.

      4) The contact information as required under 2)a) and 2)d) must
      not be removed or changed, except that the person himself can
      make corrections.

   III) If you distribute a modified version of Vim , you are encouraged
   to use the Vim license for your changes and make them available to the
   maintainer, including the source code. The preferred way to do this
   is by e-mail or by uploading the files to a server and e-mailing the
   URL. If the number of changes is small (e.g., a modified Makefile)
   e-mailing a context diff will do. The e-mail address to be used is
   <maintainer@vim.org>

   IV) It is not allowed to remove this license from the distribution
   of the Vim sources, parts of it or from a modified version. You may
   use this license for previous Vim releases instead of the license
   that they came with, at your option.
