remove TODO is it possible to support progress events when size is not known - make second argument to "downloading" optional?
-browser, -node: remove resolved TODOs
test: inputSpec: add 'correctly sends the input when inputType is text'
test: outputSpec: move makeByteArrayFinished and makeTextFinished to karma-mocha-requireHack.js
dummyserver.js: rework POST /text/utf8 and add POST /bytearray which use cfg.makeTextFinished and cfg.makeByteArrayFinished
test: inputSpec: add 'correctly sends the input when inputType is bytearray'
change API - do not allow Uint8Array for "input" option