Need rounded edge for Pie slider shape.

[soundar24]

Currently the "pie" slider having the square type edges. The rounded edge also needed for this case.

This was requested by "James Lanman" on here:
http://roundsliderui.com/#comment-2284596311

[soundar24]

Added the new property "roundedCorner" to achieve the rounded edge behavior. By setting the property value as true this can be achieved.

After setting roundedCorner: true, it looks like:

[soundar24]

Once need to consider the property name and still the roundslider 1.2 version not released. So i reopened this issue.
(This functionality will be included in the 1.2 version, at that time the property name will be finalized.)

[soundar24]

Finalized the property name as "lineCap", also the possible values are "square" and "round".

[soundar24]

With the stable version 1.3 the lineCap property was included. Please check the below demo:
http://jsfiddle.net/soundar24/LpuLe9tr/270/