Second attempt at fixing findPageByRectangles for vertical writing mode (works but confused about the requirement of RTL checks)
Second attempt at fixing findPageByRectangles for vertical writing mode
(works but confused about the requirement of RTL checks)

AccessSeoul/readium-shared-js,pmstss/readium-shared-js,bibliolabs/readium-shared-js,JoMedia/readium-shared-js,readium/readium-shared-js,NYPL/readium-shared-js,readium/readium-shared-js,bpyoung/readium-shared-js,AccessSeoul/readium-shared-js,ravn-no/readium-shared-js,kivuto/readium-shared-js,dariocravero/readium-shared-js,bpyoung/readium-shared-js,kivuto/readium-shared-js,pmstss/readium-shared-js,NYPL-Simplified/readium-shared-js,ravn-no/readium-shared-js,NYPL-Simplified/readium-shared-js,bibliolabs/readium-shared-js,dariocravero/readium-shared-js,NYPL/readium-shared-js