From Valeri: - add possiblity to generate "infinite-loop" animated GIFs   (aka NETSCAPE 2.0 extension). - detecting the last subimage in multi-image GIF and TIFF image added
From Valeri:
- add possiblity to generate "infinite-loop" animated GIFs
  (aka NETSCAPE 2.0 extension).
- detecting the last subimage in multi-image GIF and TIFF image added


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@16522 27541ba8-7e3a-0410-8455-c3a389f83636

dfunke/root,Duraznos/root,olifre/root,vukasinmilosevic/root,ffurano/root5,omazapa/root,georgtroska/root,CristinaCristescu/root,mkret2/root,root-mirror/root,arch1tect0r/root,beniz/root,0x0all/ROOT,jrtomps/root,beniz/root,davidlt/root,zzxuanyuan/root-compressor-dummy,Y--/root,bbockelm/root,bbockelm/root,mhuwiler/rootauto,veprbl/root,ffurano/root5,nilqed/root,agarciamontoro/root,omazapa/root-old,tc3t/qoot,lgiommi/root,Duraznos/root,sbinet/cxx-root,abhinavmoudgil95/root,karies/root,davidlt/root,dfunke/root,sbinet/cxx-root,beniz/root,mhuwiler/rootauto,sawenzel/root,sawenzel/root,Y--/root,sirinath/root,karies/root,sawenzel/root,mkret2/root,nilqed/root,karies/root,esakellari/root,CristinaCristescu/root,dfunke/root,Y--/root,zzxuanyuan/root,bbockelm/root,karies/root,abhinavmoudgil95/root,mhuwiler/rootauto,veprbl/root,evgeny-boger/root,lgiommi/root,lgiommi/root,zzxuanyuan/root-compressor-dummy,BerserkerTroll/root,sawenzel/root,alexschlueter/cern-root,dfunke/root,sbinet/cxx-root,esakellari/my_root_for_test,bbockelm/root,veprbl/root,sawenzel/root,pspe/root,arch1tect0r/root,mhuwiler/rootauto,omazapa/root-old,Y--/root,georgtroska/root,esakellari/my_root_for_test,Y--/root,kirbyherm/root-r-tools,tc3t/qoot,gganis/root,zzxuanyuan/root-compressor-dummy,sbinet/cxx-root,BerserkerTroll/root,perovic/root,satyarth934/root,bbockelm/root,nilqed/root,veprbl/root,simonpf/root,Duraznos/root,karies/root,krafczyk/root,perovic/root,root-mirror/root,thomaskeck/root,agarciamontoro/root,0x0all/ROOT,gganis/root,smarinac/root,veprbl/root,smarinac/root,ffurano/root5,lgiommi/root,sbinet/cxx-root,omazapa/root,simonpf/root,BerserkerTroll/root,mkret2/root,root-mirror/root,Duraznos/root,agarciamontoro/root,abhinavmoudgil95/root,satyarth934/root,zzxuanyuan/root-compressor-dummy,bbockelm/root,zzxuanyuan/root,omazapa/root-old,dfunke/root,kirbyherm/root-r-tools,ffurano/root5,mhuwiler/rootauto,root-mirror/root,abhinavmoudgil95/root,krafczyk/root,agarciamontoro/root,gganis/root,evgeny-boger/root,veprbl/root,perovic/root,olifre/root,Dr15Jones/root,vukasinmilosevic/root,veprbl/root,simonpf/root,krafczyk/root,veprbl/root,sirinath/root,satyarth934/root,sawenzel/root,evgeny-boger/root,davidlt/root,pspe/root,kirbyherm/root-r-tools,esakellari/root,beniz/root,BerserkerTroll/root,mhuwiler/rootauto,kirbyherm/root-r-tools,davidlt/root,gbitzes/root,gbitzes/root,ffurano/root5,tc3t/qoot,buuck/root,0x0all/ROOT,0x0all/ROOT,gganis/root,zzxuanyuan/root,satyarth934/root,dfunke/root,bbockelm/root,olifre/root,mkret2/root,agarciamontoro/root,cxx-hep/root-cern,smarinac/root,Duraznos/root,omazapa/root,mkret2/root,simonpf/root,buuck/root,zzxuanyuan/root-compressor-dummy,vukasinmilosevic/root,agarciamontoro/root,simonpf/root,buuck/root,olifre/root,thomaskeck/root,Dr15Jones/root,karies/root,esakellari/root,georgtroska/root,simonpf/root,omazapa/root,Dr15Jones/root,Y--/root,zzxuanyuan/root-compressor-dummy,smarinac/root,sirinath/root,simonpf/root,nilqed/root,CristinaCristescu/root,esakellari/my_root_for_test,root-mirror/root,sawenzel/root,simonpf/root,tc3t/qoot,satyarth934/root,mkret2/root,esakellari/root,esakellari/root,jrtomps/root,pspe/root,simonpf/root,mattkretz/root,esakellari/my_root_for_test,mhuwiler/rootauto,satyarth934/root,arch1tect0r/root,gbitzes/root,omazapa/root,mattkretz/root,satyarth934/root,cxx-hep/root-cern,thomaskeck/root,davidlt/root,mkret2/root,smarinac/root,lgiommi/root,BerserkerTroll/root,krafczyk/root,perovic/root,gbitzes/root,krafczyk/root,davidlt/root,lgiommi/root,davidlt/root,strykejern/TTreeReader,cxx-hep/root-cern,tc3t/qoot,nilqed/root,dfunke/root,esakellari/root,root-mirror/root,mhuwiler/rootauto,zzxuanyuan/root,simonpf/root,davidlt/root,omazapa/root-old,CristinaCristescu/root,jrtomps/root,Y--/root,kirbyherm/root-r-tools,georgtroska/root,CristinaCristescu/root,pspe/root,nilqed/root,georgtroska/root,cxx-hep/root-cern,mkret2/root,olifre/root,omazapa/root-old,evgeny-boger/root,root-mirror/root,krafczyk/root,krafczyk/root,thomaskeck/root,pspe/root,Y--/root,bbockelm/root,gganis/root,sbinet/cxx-root,abhinavmoudgil95/root,olifre/root,mhuwiler/rootauto,olifre/root,satyarth934/root,buuck/root,evgeny-boger/root,arch1tect0r/root,veprbl/root,sirinath/root,georgtroska/root,beniz/root,karies/root,BerserkerTroll/root,BerserkerTroll/root,alexschlueter/cern-root,jrtomps/root,vukasinmilosevic/root,0x0all/ROOT,CristinaCristescu/root,alexschlueter/cern-root,mattkretz/root,jrtomps/root,omazapa/root-old,thomaskeck/root,olifre/root,mhuwiler/rootauto,strykejern/TTreeReader,Y--/root,arch1tect0r/root,thomaskeck/root,pspe/root,buuck/root,Y--/root,strykejern/TTreeReader,mkret2/root,bbockelm/root,0x0all/ROOT,zzxuanyuan/root,esakellari/root,agarciamontoro/root,Duraznos/root,Dr15Jones/root,nilqed/root,mattkretz/root,perovic/root,georgtroska/root,krafczyk/root,BerserkerTroll/root,esakellari/root,Duraznos/root,vukasinmilosevic/root,abhinavmoudgil95/root,abhinavmoudgil95/root,lgiommi/root,pspe/root,evgeny-boger/root,ffurano/root5,smarinac/root,sbinet/cxx-root,beniz/root,abhinavmoudgil95/root,gbitzes/root,sbinet/cxx-root,lgiommi/root,mkret2/root,BerserkerTroll/root,bbockelm/root,evgeny-boger/root,omazapa/root-old,esakellari/my_root_for_test,zzxuanyuan/root-compressor-dummy,perovic/root,tc3t/qoot,kirbyherm/root-r-tools,nilqed/root,zzxuanyuan/root,omazapa/root-old,gbitzes/root,buuck/root,strykejern/TTreeReader,vukasinmilosevic/root,Duraznos/root,jrtomps/root,smarinac/root,sawenzel/root,simonpf/root,mattkretz/root,alexschlueter/cern-root,smarinac/root,cxx-hep/root-cern,Duraznos/root,olifre/root,arch1tect0r/root,georgtroska/root,evgeny-boger/root,krafczyk/root,CristinaCristescu/root,BerserkerTroll/root,agarciamontoro/root,zzxuanyuan/root-compressor-dummy,agarciamontoro/root,georgtroska/root,arch1tect0r/root,nilqed/root,karies/root,strykejern/TTreeReader,esakellari/root,karies/root,buuck/root,evgeny-boger/root,sirinath/root,Dr15Jones/root,georgtroska/root,gbitzes/root,jrtomps/root,satyarth934/root,omazapa/root-old,BerserkerTroll/root,0x0all/ROOT,jrtomps/root,thomaskeck/root,esakellari/my_root_for_test,evgeny-boger/root,arch1tect0r/root,karies/root,mattkretz/root,esakellari/my_root_for_test,zzxuanyuan/root,gganis/root,lgiommi/root,sbinet/cxx-root,root-mirror/root,0x0all/ROOT,esakellari/root,buuck/root,arch1tect0r/root,omazapa/root,sbinet/cxx-root,pspe/root,gbitzes/root,mkret2/root,karies/root,beniz/root,zzxuanyuan/root,omazapa/root,sirinath/root,abhinavmoudgil95/root,root-mirror/root,sbinet/cxx-root,beniz/root,0x0all/ROOT,omazapa/root,pspe/root,cxx-hep/root-cern,arch1tect0r/root,smarinac/root,zzxuanyuan/root,cxx-hep/root-cern,mattkretz/root,alexschlueter/cern-root,kirbyherm/root-r-tools,gganis/root,jrtomps/root,smarinac/root,zzxuanyuan/root,dfunke/root,lgiommi/root,esakellari/my_root_for_test,bbockelm/root,perovic/root,arch1tect0r/root,perovic/root,tc3t/qoot,gbitzes/root,pspe/root,Duraznos/root,krafczyk/root,alexschlueter/cern-root,CristinaCristescu/root,lgiommi/root,mattkretz/root,satyarth934/root,Duraznos/root,veprbl/root,sirinath/root,dfunke/root,jrtomps/root,mattkretz/root,satyarth934/root,dfunke/root,esakellari/my_root_for_test,sirinath/root,omazapa/root-old,davidlt/root,thomaskeck/root,tc3t/qoot,zzxuanyuan/root,pspe/root,veprbl/root,thomaskeck/root,sirinath/root,beniz/root,CristinaCristescu/root,omazapa/root,root-mirror/root,sawenzel/root,vukasinmilosevic/root,buuck/root,gbitzes/root,omazapa/root-old,strykejern/TTreeReader,nilqed/root,tc3t/qoot,zzxuanyuan/root-compressor-dummy,vukasinmilosevic/root,alexschlueter/cern-root,omazapa/root,mhuwiler/rootauto,zzxuanyuan/root-compressor-dummy,agarciamontoro/root,cxx-hep/root-cern,sawenzel/root,sirinath/root,beniz/root,georgtroska/root,olifre/root,gganis/root,krafczyk/root,perovic/root,Y--/root,Dr15Jones/root,buuck/root,davidlt/root,thomaskeck/root,vukasinmilosevic/root,buuck/root,gganis/root,sirinath/root,vukasinmilosevic/root,abhinavmoudgil95/root,vukasinmilosevic/root,tc3t/qoot,jrtomps/root,gbitzes/root,zzxuanyuan/root-compressor-dummy,abhinavmoudgil95/root,zzxuanyuan/root,root-mirror/root,nilqed/root,esakellari/root,mattkretz/root,CristinaCristescu/root,gganis/root,esakellari/my_root_for_test,gganis/root,davidlt/root,CristinaCristescu/root,evgeny-boger/root,sawenzel/root,Dr15Jones/root,perovic/root,ffurano/root5,omazapa/root,agarciamontoro/root,dfunke/root,olifre/root,strykejern/TTreeReader,mattkretz/root,beniz/root,perovic/root