null and undefined sorting

Issue: #24

This fixes a bug where sorting a "Schema"ed property that had a null or undefined value was erring. Something like the following was breaking:

var results = todoQueryLogic.filterMembers({
	sort: "due"
}, [
	{
		id: 1,
		due: null
	},
	{
		id: 2,
		due: new Date(2001,0,1).toString()
	},
	{
		id: 3,
		due: new Date(2000,0,1).toString()
	},
	{
		id: 4,
		due: null
	}
]);

Undefined and null values will come first now.

IE 11 Compatibility

Instantiating Map without iterable.

Documentation Updates

v1.1.3

1.1.3

Fixes hydration bug with {age:22} and {age: [22]}

PR #20

Expose set methods and reduce some examples better

Commit: 7547e48

import {QueryLogic} from "can-query-logic";
var gt1 = new QueryLogic.GreaterThan(1);
var lte1 = new QueryLogic.LessThanEqual(1);

QueryLogic.intersection(gt1, lte1) //-> QueryLogic.EMPTY

1.0.0

This is the first major release of can-query-logic.