Introduce a new way to `require` plugins when using RequireJS (dev mode). This is to fix an issue with timing that existed previously.
Introduce a new way to `require` plugins when using RequireJS (dev mode).
This is to fix an issue with timing that existed previously.

GermanCentralLibraryForTheBlind/readium-js-viewer,readium/readium-js-viewer,NYULibraries/readium-js-viewer,NYULibraries/readium-js-viewer,readium/readium-js-viewer,kivuto/readium-js-viewer,GermanCentralLibraryForTheBlind/readium-js-viewer,looknear/readium-js-viewer,kivuto/readium-js-viewer,looknear/readium-js-viewer,AndyHubert/readium-js-viewer,AndyHubert/readium-js-viewer