reduced extraneous JSHint errors by tweaking .jshintignore
fixing up test to pass jshint
Merge pull request #242 from diwu1989/jshint

fixing up test to pass jshint
Create CONTRIBUTING.md
Update LICENSE
Merge pull request #238 from diwu1989/master

HoverDetail should use the point's pre-formatted X Y value instead of re-computing
Merge pull request #241 from mcandre/master

Added node_modules and minified JS skipping to .jshintignore