Updating can-stache-key

#82

Add references scope if none for `getRefs`

If getRefs is called and would be returning undefined we add a references scope to the top scope and return that.

restoring dependencyChange/start on offValue

#76

Where showing and hiding an element like

<input type="text" value="{{val}}">

would break.

can-reflect

v3.2.0

3.2.0

{{this.prop}} works

Fixes #45. Allows {{this.prop}} to work.

Makes it so `..` skips past hidden contexts.

Fixes #43 which caused problems when there were hidden contexts such as:

{{#each items}}
  <some-component {^value}="../parentValue"/>
{{/each}}

In something like above, value was being set as parentValue on the hidden context that contains %index. This makes ../ properly skip that context.