fixed coverity complaints in TMVA code. All but 52298 and 52300 which I didn't understand
added some documetation for the release notes
Fix points 1) and 2) in ROOT-5468
sorry, there was a mistake in my coverity fix
get master and v5-34-00 to be the same
one last thing ... then master and v5-34 are the same (for TMVA of course only)
fix windows problems following Lorenzos advice
restore backward compatibility with predefined options that are no longer available in the BDTs