From Maarten:

README.SELECTOR provides description of TSelector framework. Also to be
put in the User Guide. TTreePlayer update to add more comments in generated
selector code reflecting the SlaveBegin and SlaveTerminate, etc.


git-svn-id: http://root.cern.ch/svn/root/trunk@8337 27541ba8-7e3a-0410-8455-c3a389f83636