Fix a typo in the documentation

For documentation needs, fix the isntance wording to instance.

QUNIT2 upgrade

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

#31

Read from Symbol as well as the __inSetup property

Part of the cleanup to add check for Symbol as well as the __inSetup property.

Ref - canjs/canjs#4705

Fix binding method order of `.on` and `.off`

Commit: aa06912 This fixes the order of .on to use @@can.onEvent, addEventListener, @@can.onKeyValue. It does something similar for .off.

IE 11 Compatibility

Fix a test by appending an element in the document so the event can be dispatched.

When removing handlers on a prototype, do not dispatch onInstanceBoundChange

Fixes: https://codepen.io/anon/pen/xyPZJO?editors=1012

Commit: e37851f

Only dispatch onInstanceBoundChange with instances

Commit: 4701fb5

Issue: #20

v1.1.0

• Add compatibility with how webpack builds for production #18
• Add "use strict" #19

v1.0.2

Make use of the isEmpty method on key trees for performance b1dfa87

v1.0.1

Cleanup markdown sample code #16