From Wouter:

   o RooAbsTestStatistic, RooAbsOptTestStatistic, RooKeysPdf

     - Adjustments for persistence (correct default ctor etc...)

   o RooTreeData

     - Apply cut ranges when plotting asymmetry if specified 
       (Fix from Gerhard Raven)

   o RooBanner

     - Increment version tag to v2.30


git-svn-id: http://root.cern.ch/svn/root/trunk@21272 27541ba8-7e3a-0410-8455-c3a389f83636