Support for evenodd fill rule

[mitar]

Support evenodd fill rule.

Example:

var canvas = document.createElement('canvas');
var ctx = canvas.getContext('2d');
ctx.rect(1, 1, 50, 50);
ctx.rect(5, 5, 41, 41);
ctx.fill('evenodd');

The "evenodd" value indicates the even-odd rule, wherein a point is considered to be outside a shape if the number of times a half-infinite straight line drawn from that point crosses the shape's path is even.

[ghost]

any news?

[isieo]

bump?

[zbjornson]

Fixed in #762/v1.4.0 🎉