implemented iterative binary search for CFIs, without using carretFromRange
implemented iterative binary search for CFIs, without using carretFromRange

NYPL/readium-shared-js,NYPL/readium-shared-js,readium/readium-shared-js,NYPL-Simplified/readium-shared-js,NYPL-Simplified/readium-shared-js,readium/readium-shared-js