bugfixes related to (r)bind and compress

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@649 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
modified to include family, there is no test if it is available

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@650 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
new minor version

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@651 edb9625f-4e0d-4859-8d74-9fd3b1da38cb