Adding option to ResolverObservable to reset the _value in get() when unbound

#46

Implementing setElement symbol on SetterObservable

#44

QUNIT2 upgrade

This updates the tests to use QUnit@2.x.x.

#41

IE 11 Compatibility

Skip test function name property

Adds the ability to take default value

PR: #36

Adds .value getter/ setters

This adds .value getter and setters for Async/Resolver/Settable/Setter and SimpleObservable:

obs = new SimpleObservable(5);
obs.value // ->5

obs.value = 3;
obs.value // -> 3

v2.2.0

Add a value property getter & setter to the key module/observable #32

v2.1.1

Fix an issue when building for production 2e85df4

v2.1.0

• Add KeyObservable #23
• Fix dev code for webpack compatibility #27
• Add "use strict" #28
• Get rid of can-util as a dependency #30

v2.0.5

Prevents the resolver function from leaking observable reads 895ba81