fix merge of histogram with labels when kCanRebin bit is not set  see https://savannah.cern.ch/bugs/?98356
fix merge of histogram with labels when kCanRebin bit is not set 
see https://savannah.cern.ch/bugs/?98356


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@47789 27541ba8-7e3a-0410-8455-c3a389f83636

Duraznos/root,sawenzel/root,sbinet/cxx-root,agarciamontoro/root,sirinath/root,veprbl/root,sawenzel/root,arch1tect0r/root,dfunke/root,olifre/root,davidlt/root,jrtomps/root,omazapa/root-old,root-mirror/root,omazapa/root-old,dfunke/root,omazapa/root-old,satyarth934/root,zzxuanyuan/root-compressor-dummy,root-mirror/root,sirinath/root,pspe/root,BerserkerTroll/root,cxx-hep/root-cern,perovic/root,sawenzel/root,Duraznos/root,sawenzel/root,omazapa/root,root-mirror/root,georgtroska/root,satyarth934/root,evgeny-boger/root,BerserkerTroll/root,omazapa/root,gbitzes/root,esakellari/root,davidlt/root,mkret2/root,davidlt/root,satyarth934/root,cxx-hep/root-cern,CristinaCristescu/root,sbinet/cxx-root,vukasinmilosevic/root,0x0all/ROOT,sirinath/root,perovic/root,omazapa/root,smarinac/root,mkret2/root,smarinac/root,zzxuanyuan/root-compressor-dummy,perovic/root,zzxuanyuan/root-compressor-dummy,alexschlueter/cern-root,gganis/root,gganis/root,esakellari/root,sirinath/root,0x0all/ROOT,arch1tect0r/root,cxx-hep/root-cern,root-mirror/root,karies/root,thomaskeck/root,cxx-hep/root-cern,zzxuanyuan/root,veprbl/root,dfunke/root,0x0all/ROOT,mattkretz/root,georgtroska/root,perovic/root,beniz/root,buuck/root,bbockelm/root,buuck/root,thomaskeck/root,jrtomps/root,esakellari/my_root_for_test,omazapa/root-old,sbinet/cxx-root,thomaskeck/root,davidlt/root,karies/root,abhinavmoudgil95/root,abhinavmoudgil95/root,nilqed/root,gbitzes/root,esakellari/my_root_for_test,olifre/root,CristinaCristescu/root,zzxuanyuan/root,Duraznos/root,sbinet/cxx-root,beniz/root,jrtomps/root,olifre/root,buuck/root,satyarth934/root,sbinet/cxx-root,davidlt/root,perovic/root,agarciamontoro/root,nilqed/root,root-mirror/root,omazapa/root-old,esakellari/root,mhuwiler/rootauto,CristinaCristescu/root,krafczyk/root,simonpf/root,BerserkerTroll/root,evgeny-boger/root,mkret2/root,beniz/root,esakellari/my_root_for_test,simonpf/root,gganis/root,simonpf/root,lgiommi/root,zzxuanyuan/root,veprbl/root,BerserkerTroll/root,agarciamontoro/root,krafczyk/root,mhuwiler/rootauto,perovic/root,satyarth934/root,buuck/root,perovic/root,mhuwiler/rootauto,agarciamontoro/root,evgeny-boger/root,zzxuanyuan/root,olifre/root,olifre/root,beniz/root,mkret2/root,CristinaCristescu/root,veprbl/root,smarinac/root,olifre/root,davidlt/root,zzxuanyuan/root,nilqed/root,vukasinmilosevic/root,nilqed/root,krafczyk/root,zzxuanyuan/root,esakellari/my_root_for_test,alexschlueter/cern-root,thomaskeck/root,nilqed/root,olifre/root,root-mirror/root,sbinet/cxx-root,zzxuanyuan/root,smarinac/root,abhinavmoudgil95/root,gganis/root,mattkretz/root,Y--/root,Duraznos/root,buuck/root,arch1tect0r/root,omazapa/root,BerserkerTroll/root,zzxuanyuan/root-compressor-dummy,omazapa/root-old,thomaskeck/root,Y--/root,gbitzes/root,smarinac/root,esakellari/root,Duraznos/root,gbitzes/root,mattkretz/root,beniz/root,CristinaCristescu/root,pspe/root,omazapa/root-old,georgtroska/root,zzxuanyuan/root,gbitzes/root,bbockelm/root,jrtomps/root,esakellari/root,gbitzes/root,bbockelm/root,agarciamontoro/root,karies/root,mhuwiler/rootauto,karies/root,veprbl/root,simonpf/root,arch1tect0r/root,abhinavmoudgil95/root,davidlt/root,BerserkerTroll/root,thomaskeck/root,krafczyk/root,bbockelm/root,omazapa/root,veprbl/root,davidlt/root,lgiommi/root,esakellari/my_root_for_test,bbockelm/root,mattkretz/root,veprbl/root,karies/root,vukasinmilosevic/root,satyarth934/root,gganis/root,zzxuanyuan/root-compressor-dummy,esakellari/my_root_for_test,Duraznos/root,BerserkerTroll/root,arch1tect0r/root,BerserkerTroll/root,mattkretz/root,jrtomps/root,lgiommi/root,olifre/root,omazapa/root,bbockelm/root,sirinath/root,zzxuanyuan/root,davidlt/root,mattkretz/root,jrtomps/root,dfunke/root,karies/root,buuck/root,sawenzel/root,gbitzes/root,evgeny-boger/root,abhinavmoudgil95/root,nilqed/root,mkret2/root,zzxuanyuan/root-compressor-dummy,root-mirror/root,simonpf/root,mkret2/root,karies/root,alexschlueter/cern-root,arch1tect0r/root,esakellari/root,lgiommi/root,georgtroska/root,mhuwiler/rootauto,arch1tect0r/root,jrtomps/root,pspe/root,Duraznos/root,mhuwiler/rootauto,smarinac/root,mhuwiler/rootauto,0x0all/ROOT,simonpf/root,buuck/root,esakellari/my_root_for_test,agarciamontoro/root,Y--/root,zzxuanyuan/root-compressor-dummy,sirinath/root,bbockelm/root,sirinath/root,alexschlueter/cern-root,veprbl/root,dfunke/root,satyarth934/root,sbinet/cxx-root,perovic/root,krafczyk/root,omazapa/root,veprbl/root,nilqed/root,zzxuanyuan/root-compressor-dummy,perovic/root,dfunke/root,Y--/root,smarinac/root,georgtroska/root,beniz/root,buuck/root,sbinet/cxx-root,zzxuanyuan/root-compressor-dummy,satyarth934/root,mattkretz/root,sawenzel/root,agarciamontoro/root,omazapa/root,mkret2/root,pspe/root,dfunke/root,jrtomps/root,simonpf/root,karies/root,CristinaCristescu/root,georgtroska/root,sawenzel/root,krafczyk/root,esakellari/root,lgiommi/root,krafczyk/root,Y--/root,evgeny-boger/root,perovic/root,Y--/root,sirinath/root,pspe/root,CristinaCristescu/root,satyarth934/root,lgiommi/root,mattkretz/root,pspe/root,pspe/root,mhuwiler/rootauto,p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