Import tree/treeplayer from branch axel at http://root.cern.ch/git/rootdev.git

tree/treeplayer/inc/LinkDef.h

tree/treeplayer/inc/TBranchProxy.h

tree/treeplayer/inc/TTreeReader.h

tree/treeplayer/inc/TTreeReaderArray.h

tree/treeplayer/inc/TTreeReaderUtils.h

tree/treeplayer/inc/TTreeReaderValue.h

tree/treeplayer/src/TBranchProxy.cxx

tree/treeplayer/src/TTreeReader.cxx

tree/treeplayer/src/TTreeReaderArray.cxx

tree/treeplayer/src/TTreeReaderValue.cxx

tree/treeplayer/test/Makefile

tree/treeplayer/test/MyParticle.h

tree/treeplayer/test/makeFeatureTree.C

tree/treeplayer/test/tread.C

tree/treeplayer/test/twrite.C