Leaflet/Leaflet — pull request #1863 by palewire (2013-07-13 05:39:10+00:00)
Title: New stroke-linecap style option with a VML alternative. For #1643.

Based the following documentation for [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/stroke-linecap) and [VML](http://bit.ly/15pnUFT).