first pass concerning JSS comments

- cite all software: added Rserve
- "replication more accessible": huh?
- sentence style for \section, \subsection
- sentence style for \caption
- sentence style for column captions in tables
- quote argument to data() and library() 
- remove comments from quoted code
- adjust linebreak of first code example table
- reference to 'Springer-Verlag'
- title style for references


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rprotobuf@874 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
one char typo


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/rprotobuf@875 edb9625f-4e0d-4859-8d74-9fd3b1da38cb