BREAKING CHANGES:
The Option component’s `checked` attribute has been renamed to
`selected` in order to select an option. This is to the follow the MDN
spec for a select option:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/option
If a `ngModel` is added to the Select component the value of the
`ngModel` will take precedence over the `selected` attribute.
references #7334
- add spacing between imports
- alphabetize imports
- removed app.html files in favor of an inline ion-nav
- cleaned up config demo so it uses proper syntax
- use file name main.html for the first page for the demo
- name the app ApiDemoApp and first page ApiDemoPage
- replace the ion-toolbars with ion-navbars
closes#7019closesdriftyco/ionic-site#647