Merge branch 'develop' into trim-travis

.circleci/config.yml

.npmignore

.travis.yml

package-lock.json

package.json

src/components/gui/gui.jsx

src/components/library-item/library-item.css

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

src/components/menu-bar/project-title-input.jsx

src/components/monitor/monitor.css

src/containers/gui.jsx

src/containers/sb-file-uploader.jsx

src/lib/audio/effects/volume-effect.js

src/lib/backpack/jpeg-thumbnail.js

src/lib/libraries/decks/en-steps.js

src/lib/libraries/decks/index.jsx

...ibraries/decks/steps/code-cartoon-01-say-something.en.png

src/lib/libraries/decks/steps/code-cartoon-02-animate.en.gif

...s/steps/code-cartoon-03-select-different-character.en.gif

...braries/decks/steps/code-cartoon-04-use-minus-sign.en.gif