Merge remote-tracking branch 'upstream/develop' into develop

.circleci/config.yml

package-lock.json

package.json

src/components/gui/gui.jsx

src/components/menu-bar/menu-bar.jsx

src/components/telemetry-modal/telemetry-modal.css

src/components/telemetry-modal/telemetry-modal.jsx

src/containers/blocks.jsx

src/containers/gui.jsx

src/containers/paint-editor-wrapper.jsx

src/containers/sb-file-uploader.jsx

src/containers/sound-editor.jsx

src/containers/sound-tab.jsx

src/containers/stage.jsx

src/lib/app-state-hoc.jsx

src/lib/audio/audio-util.js

src/lib/backpack-api.js

src/lib/file-uploader.js

src/lib/libraries/.eslintrc.js

src/lib/sb-file-uploader-hoc.jsx