Basic filter-by-text custom element
Introduce lifecycle callbacks

* Enables initial filterText.
* Enables use of "match" class for styling instead of awkward "not-match".
Introduce Shadow DOM
Introduce <content> element
Introduce HTML templates
Introduce style encapsulation
Introduce Shadow DOM styling
Introduce HTML Imports
Set up for next step ('bower install basic-list-box#master')
Introduce nested imports/component reuse

* Explain platform.js
Introduce inheritance
Introduce Polymer
Introduce automatic node finding
Introduce data binding
Introduce filters