[License-review] For Approval: License Zero Reciprocal Public License

[Kyle Mitchell]

Revising the text of the proposed license, per feedback here
on license-review and elsewhere.

Also replying to the original message this time.  If I
revise again, I'll do the same, so it's easier to find.

First the new text, then a few notes.

Text:

    License Zero Reciprocal Public License <Version>

    Copyright <Year> <Copyright Holder>

    Redistribution and use in source and binary forms, with
    or without modification, are 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.  Uses with any modification that is not "Open Source"
        as defined by the Open Source Initiative must be
        limited to <Grace Period> calendar days.

    4.  Uses as part of, or in development of, other
        software that is not "Open Source" as defined by the
        Open Source Initiative must be limited to <Grace
        Period> calendar days.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
    CONTRIBUTORS "AS IS" AND ANY EXPRESS 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 THE
    COPYRIGHT HOLDER OR CONTRIBUTORS 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.

Notes:

- I've removed all mention of agent for sale of alternative
  licenses, as well as the automatic waiver of the copyleft
  conditions.  My motivation was twofold. For one, those
  features produced considerable comment, concern, and
  confusion, aside from the main issue of use conditions
  triggering copyleft.  For two, the aim of each can be
  achieved otherwise, outside the license text. As a result,
  the proposal is now _exactly_ BSD-2-Clause, plus new
  conditions 3 and 4.

- The copyleft triggers now speak directly in terms of OSD
  conformance, to catch both source availability and license
  terms requirements.  (The assumption is that L0-R, in some
  form, will eventually be recognized itself, so L0-R code
  can clearly incorporate L0-R code.)  But that aside, I
  think the new language goes more directly to intent, and
  reads more clearly.

- I've split the new conditions across two numbered items.
  This should help clarify that unmodified use alone does
  not trigger share-alike.

- I was tempted to define terms for repeated words and
  phrases, but held the urge back.  BSD-2-Clause doesn't do
  so, and for this kind of license, stylistically, I think
  that's probably best.

-- 
Kyle Mitchell, attorney // Oakland // (510) 712 - 0933