biheng/uppy: 现代化的上传组件。 @ 925614c9b1917fc962c0c0716429b8ac6f81286c

Artur Paikin 2cc3b83a98 fix core test to account for that `new Uppy()` is same as `Uppy()`		8 年之前
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acceptance	42fa28f7c0 update multipart website example and acceptance test	8 年之前
unit	2cc3b83a98 fix core test to account for that `new Uppy()` is same as `Uppy()`	8 年之前