deleting old subset.R

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@906 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
finished commented code in treestruc and moved it to phylo4-accessor, new methods: terminalEdges and internalEdges, updated doc to reflect these changes.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@907 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
updated/formatted docs for treePlot functions.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@908 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
updated doc for root methods

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@909 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
updated doc for labels methods

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@910 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
cosmetic change to roxygen doc.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@911 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
add roxygen doc for print methods.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@912 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
phylo4.R not needed anymore, all generic defined with their methods.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@913 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
fixed a few things to make dev_tools::document() work

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/phylobase@914 edb9625f-4e0d-4859-8d74-9fd3b1da38cb