Rounded corners
===============
This plugin adds options for setting rounded corners on bar and column charts.

The contents of the plugin is located in the javascript file
`rounded-corners.js`. 

This plugin is published under the MIT license, and the license document is
included in the repository.

### Usage
The plugin adds four options to the column series object; `borderRadiusTopLeft`,
`borderRadiusTopRight`, `borderRadiusBottomLeft` and `borderRadiusBottomRight`.
If the options are given as numbers, they are interpreted as pixels. If given
as percentage strings, they are percentages of the column width.


### Demo
* [Rounded corners](http://jsfiddle.net/highcharts/b288zrch/)