'&&' and '||' priority

[VincentWuShiChao]

The priority of the current module is && and | | is the same，The result of ' 'true && true || false && false'' is false.But in JavaScript, '&&' than '| |' priority,so The result of ' 'true && true || false && false'' is true.

My solution so far is to rewrite the priorities。The following：
jexl.addBinaryOp('&&', 11, (left, right) => {
return left && right;
});

[TomFrost]

Sorry for the late response to this -- this is a great observation. While Jexl's goal isn't to mirror Javascript, I think this is a great move for predictability. It is a breaking change, though, so this will come in the next major version release.