Squashed commit of the following:

commit a3213955f51ffdd3feed87e7d38c101a807bbd12
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Fri Nov 7 15:50:07 2014 +0200

    remove tests from the release version

commit e076ea25e2e8720136ac930e63ab075107d2b8f7
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Fri Nov 7 15:48:33 2014 +0200

    Bump up version to 2.2-0 for CRAN release

commit f44316d16f19fa1d5fd307c61f96f0bc253f9bab
Author: Jari Oksanen <jari.oksanen@oulu.fi>
Date:   Fri Nov 7 15:45:46 2014 +0200

    Update web addresses to use github instead of R-Forge

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegan@2909 edb9625f-4e0d-4859-8d74-9fd3b1da38cb