removed inconsitency with leading zeros in plot names 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@662 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
removed bug related to polygon IDs in SpatialPolygons

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@663 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
taxonomy has to be subsetted when supplied as data.frame

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@664 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
dropped at from layers column

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@665 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
fixed bug related to leading zeros in plots names

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/vegsoup@666 edb9625f-4e0d-4859-8d74-9fd3b1da38cb