adding pre-build vignette pdf

git-svn-id: https://hedgehog.fhcrc.org/bioc-data/trunk/experiment/pkgs/RforProteomics@2213 db2202da-8704-0410-b924-b125b3cd84ef
Merge branch 'master' into local-hedgehog

git-svn-id: https://hedgehog.fhcrc.org/bioc-data/trunk/experiment/pkgs/RforProteomics@2214 db2202da-8704-0410-b924-b125b3cd84ef
bump experiment data package versions for BioC 2.12 release

git-svn-id: https://hedgehog.fhcrc.org/bioc-data/trunk/experiment/pkgs/RforProteomics@2317 db2202da-8704-0410-b924-b125b3cd84ef
Bump version for Bioc 2.13 stable release
update README.md to reflect availability in Bioc 2.13
update README.md
use R-stable instead of R-2.15.2
suggesting rTANDEM
vignette updates/rebuilt