[Chapter 3] Switch to "feedUrl" instead of "url"
Add a fixed top navbar with branding

Conflicts:
	app/index.html
Update Jasmine to 1.3.1, use HtmlReporter & spec filtering

Conflicts:
	component.json
Convert to relative paths and a `data-main` module
Merge branch 'chapter-4' into chapter-5

Conflicts:
	app/index.html
	app/js/feed-manager.js