* Add support for description in fixtures
* Update datasetController to draw active(s) last
* Handle hiding of line by borderWidth
* Disable filling of scatter charts by default
* Make radar chart consistent with line
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).