updated RequireJS in build
updated RequireJS in build

NYPL/readium-shared-js,readium/readium-shared-js,ravn-no/readium-shared-js,kivuto/readium-shared-js,NYPL-Simplified/readium-shared-js,kivuto/readium-shared-js,NYPL-Simplified/readium-shared-js,NYPL/readium-shared-js,ravn-no/readium-shared-js,JoMedia/readium-shared-js,readium/readium-shared-js