Introduces a colors plugin that provides a color palette
Co-authored-by: Dan Onoshko <danon0404@gmail.com>
Co-authored-by: Jacco van den Berg <jaccoberg2281@gmail.com>
The controller.bar/not-grouped/on-time test was failing on my computer because the date ranges happen to cross the end of Daylight Saving Time in the U.S., so chart was generated with one more hour of time than the test fixture expected.
Using moment-timezone to specify a fixed time zone with no DST seemed like the most robust fix. (Alternatively, I could pick a date range that doesn't change DST; that ought to work.)
JSON doesn't support functions which are needed to create scriptable options, so implement a very basic method to load a JavaScript file exporting the config in `module.exports`. Also rename test sources (remove the `jasmine.` prefix), cleanup `karma.conf.js` and add an example .js fixture config (bubble radius option).
