Add React 16 Support

Added React 16 as peer dependency.

v2.5.5

Add Scatter to Typescript definition.

v2.5.4

Removed find polyfill in favor of lodash find.

Readd original functionality for legends

Legend can be set now through both the options prop as well as the legend prop

v2.5.0

Added Legend customization support #158
Added polyfill for find. #109

2.4.1

Re-added canvas as a dev dependancy.

Storybook, examples, inline plugins, proptypes.

Full list at #130

Object.assign

Replace Object.assign in favour of spread. Resolves issues for IE not supporting Object.assign

Chart.js to peerDependencies

2.0.0

2.0.0

Debug dependency

Debug dependency is broken in version 2.4.0
See debug-js/debug#347