benchmarks against pure-ruby Grit for object_exists checking
benchmarks against pure-ruby Grit for object_exists checking

tpickett66/rugged,Acidburn0zzz/rugged,tpickett66/rugged,saraid/rugged,spraints/rugged,spraints/rugged,Acidburn0zzz/rugged,saraid/rugged,Acidburn0zzz/rugged,libgit2/rugged,libgit2/rugged,tpickett66/rugged,saraid/rugged,libgit2/rugged