Addresses #1373.
Before: if an `<a>`, `ng-click`, or `<button>` inside of a .item,
was clicked, the activator would walk up .item and activate it.
Now: If an `<a>`, `ng-click`, or `<button>` inside of a
.item is clicked, the activator will activate that element.
Additionally, CSS was added so `a.item-content.activated` would look
activated.
Closes#1349. Closes#1361
BREAKING CHANGE: ion-checkbox no longer has an isolate scope.
This will break your checkbox only if you were relying upon the
checkbox having an isolate scope: if you were referencing
`$parent.value` as the ng-disabled attribute, for example.
Change your code from this:
```html
<ion-checkbox ng-disabled="{{$parent.isDisabled}}"></ion-checkbox>
```
To this:
```html
<ion-checkbox ng-disabled="{{isDisabled}}"></ion-checkbox>
```
Overhaul of the tap system so the keyboard does not cover up focused
inputs, correctly bring up the keyboard on text input focus, disabling
focus during scroll, disabling clicks after a hold then scroll,
removing 300ms delay without additional event handlers on each element,
etc. Refactored the tap/click/scroll/activator events for more
testability, along with adding more tests.
BREAKING CHANGE: The developer should be stating exactly how an icon
should show, but previously the right nav arrow icon violates this by
automatically showing a right arrow when an item was an anchor or
button. Instead of using the `:after` item selector, which was always
applied by default, it uses the same markup as `item-icon-right`, which
is easier to understand, customizable and not a hard coded default.
This change removes the `:after` nav icon styling, and creates a new
class, `icon-accessory`, based off of similar CSS. The change makes a
nav arrow highly customizable, allows RTL developers to easily control
the arrow direction, and the accessory class is something that's
reusable.
An example of right side arrow using `ion-chevron-right` as the icon:
<a class="item item-icon-right" href="#">
Check mail
<i class="icon ion-chevron-right icon-accessory"></i>
</a>
