Merge pull request #1322 from mbucknell/iow-489

.travis.yml

CHANGELOG.md

README.md

assets/.eslintrc

assets/Makefile

assets/buble.config.js

assets/jest.config.js

assets/karma.conf.js

assets/package-lock.json

assets/package.json

assets/rollup.config.js

assets/src/scripts/ajax.test.js

assets/src/scripts/d3-rendering/accessibility.test.js

assets/src/scripts/d3-rendering/alerts.test.js

assets/src/scripts/d3-rendering/axes.test.js

assets/src/scripts/d3-rendering/cursor-slider.testjs

assets/src/scripts/d3-rendering/data-masks.test.js

assets/src/scripts/d3-rendering/graph-tooltip.test.js

assets/src/scripts/d3-rendering/info-tooltip.test.js

assets/src/scripts/d3-rendering/legend.test.js