Make the dotted y=x line in figure 2 dashed with a bigger width to
make it more visible.  Suggested by Steve Scott.  Also add some
commented out code to add line numbers to make review copies for folks
that have offered to do a final review before our resubmit.



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rprotobuf@922 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Add a missing article to Jeroen's nice rewording of this section.



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rprotobuf@923 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Address a FIXME in the code and comment from JSS referee about
aboiding file.create to get absolute pathname of temporary file.  Use
normalizePath with mustWork=FALSE as suggested by Jeroen.



git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rprotobuf@924 edb9625f-4e0d-4859-8d74-9fd3b1da38cb