Squashed commit of the following:

commit e3a3fa09c073ad1a3b9e196a6031b04e4388cf9a
Merge: 793a0c7 b330bbd
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Thu Sep 18 16:49:51 2014 +0300

    Merge pull request #40 from jarioksa/update-docs

    Update docs

commit b330bbd01c877df5c44d48b49191362cc2bf2b71
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Wed Sep 17 21:22:22 2014 +0300

    edit FAQ-vegan

commit 8494bb8c3cf81612c5baa72fdf086253703f9854
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Tue Sep 16 20:00:09 2014 +0300

    remove svn-specific fields $Date$ and $Id$ from documents

commit 72009ede68c919e31569830dd51fa5c27fe9ca82
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Tue Sep 16 19:52:52 2014 +0300

    More fixes for permutation routines in intro-vegan

commit d0b929423a483b32fc8bfa15bab6ced80b21aa0c
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Tue Sep 16 19:50:02 2014 +0300

    FAQ-vegan adapted to GitHub

commit ec8fd7e0c27a3f57024fefca3840c19d990c54f5
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Tue Sep 16 19:34:56 2014 +0300

    FAQ-vegan update to the use of permute package

commit bfb0f79a7a5cb1658c8509e94d8014b01dd24e09
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Tue Sep 16 19:20:00 2014 +0300

    update intro-vegan to changes in anova.cca

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegan@2885 edb9625f-4e0d-4859-8d74-9fd3b1da38cb