!*****************************************************************************
! VINE is copyrighted by one or more of the following                        *
!                                                                            *
! Copyright 2008 Andrew F. Nelson (andy.nelson@lanl.gov)                     *
! Copyright 2008 Markus Wetzstein (mwetz@usm.lmu.de)                         *
! Copyright 2008 Thorsten Naab    (naab@usm.lmu.de)                          *
!                                                                            *
! as indicated in the individual source file author lists. The authors       *
! can be contacted via postal mail at the addresses listed on the            *
! published papers describing VINE, as cited below. Because scientists       *
! are fairly mobile, these addresses won't remain valid indefinitely,        *
! so we recommend looking in reference sources such as the AAS or AG members *
! listings for more current contact information. Another good source         *
! is likely to be contact information on any subsequent papers on which      *
! one or another of us appear as authors.                                    *
!                                                                            *
! VINE is free software: you can redistribute it and/or modify it under      *
! the terms of the GNU General Public License, version 2, as published       *
! by the Free Software Foundation.                                           *
!                                                                            *
! VINE is distributed in the hope that it will be useful, but WITHOUT        *
! ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or      *
! FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License      *
! for more details. If VINE is modified to produce derivative works,         *
! such modified software should be clearly marked, so as not to confuse      *
! it with the version available from the authors.                            *
!                                                                            *
! You should have received a copy of the GNU General Public License          *
! along with VINE.  If not, see <http://www.gnu.org/licenses/>.              *
!                                                                            *
!                                                                            *
!*****************************************************************************
!                                                                            *
! The above scary copyright notice is placed here and throughout the         *
! code in an attempt to follow the gpl-howto guidelines as published         *
! on the Free Software Foundation website. To put your mind at ease as       *
! you read this document and the other places where such copyright blurbs    *
! are found, please note that it is not meant to be scary in any way,        *
! or to prevent you from using VINE in your work. We sincerely hope you do,  *
! and that you find it useful. In the context of the GPL code distribution   *
! requirements, we believe that the GPL and normal scientific ethics are     *
! quite compatible with each other.                                          *
!                                                                            *
! For our parts, neither VINE, nor our own scientific careers (or for that   *
! matter a great many other people throughout astrophysics) could have       *
! even gotten started without exactly this sort of ethic in place. It is     *
! our pleasure to acknowledge that the original ancestor of VINE was written *
! by Willy Benz, who is now a professor in Bern Switzerland, and who         *
! provided copies of many versions of his code over the years to many people *
! with very few if any real restrictions. Only the assumptions of honesty    *
! and of `good scientific behavior'. Although very little (if any) of the    *
! code is left from any of those versions in VINE, we believe it important   *
! to acknowledge and continue that gift to others throughout astrophysics    *
! and, more generally, any field where it may be useful. We believe that     *
! in the situation we are in--a public release--where we have no personal    *
! contact with those who get ahold of the code, the best way we can          *
! ensure that same ethic continues to propagate further is to distribute     *
! VINE under the GPL with FSF inspired copyright notices all over it.        *
! Follow the GPL, and it is very likely that you will also be following the  *
! ethical basis on which all scientific endeavors are founded. If nothing    *
! else however, you will get a really bad guilt trip if you don't pass       *
! along the code.                                                            *
!                                                                            *
! In practical terms, we expect that if you use VINE and develop a new       *
! code capability for it, you should distribute that code to your            *
! collaborators and students etc, and to publish good scientific results     *
! based on that capability and VINE. We do not make an equivalance           *
! between publishing a scientific paper about that new capability and/or     *
! using it and any sort of requirement to distribute your specific           *
! modifications or additions to everyone. We do expect that the normal       *
! sorts of peer review would make what you did clear enough so that any      *
! competent scientist could create their own code to do that same things     *
! and attach it to VINE. That is nothing new to VINE however, its just how   *
! peer review and journal publication work.                                  *
!                                                                            *
! Finally, if you use VINE and publish any results based on it, whether by   *
! itself or in combination with some modifications, then we ask you to cite  *
! both of our two papers describing it in your papers. At this writing       *
! (early 2008), the papers are `in submission' and therefore have no exact   *
! journal bibliographical information, so we can't provide that information  *
! here until actual publication. For reference anyway, the papers as they    *
! will eventually see print, are titled:                                     *
!                                                                            *
! ``VINE -- A numerical code for simulating astrophysical systems using      *
!     particles I: Description of the physics and the numerical methods''    *
!                                                                            *
!     Wetzstein, M., Nelson, Andrew F., Naab, T., Burkert A.                 *
!     Astrophysical Journal Supplements, in submission                       *
!                                                                            *
!                                                                            *
! ``VINE -- A numerical code for simulating astrophysical systems using      *
!     particles II: Implementation and performance characteristics''         *
!                                                                            *
!     Nelson, Andrew F., Wetzstein, M., Naab, T.                             *
!     Astrophysical Journal Supplements, in submission                       *
!                                                                            *
! For convienience, we have also placed pdf versions of these papers         *
! in the `doc' subdirectory.                                                 *
!                                                                            *
!                                                                            *
! Finally II: if you find any bugs in VINE (we guarantee that there          *
! still are some, despite our best efforts), we request that you send        *
! us mail. We don't promise to fix them but it would be nice to know         *
! about them at least, and we may be able to spread news about the           *
! problem a bit further than you are by yourself.                            *
!                                                                            *
!*****************************************************************************
