Aligns multiple header buttons correctly (4.4)
Update _bar.scss
Merge pull request #1341 from mhartington/Buttons-fix

fix(header): align multiple header buttons correctly in Android 4.4
feat($ionicModal): allow configuration of backdropClickToClose

Addresses #1087
docs($ionicSlideBox): fix typo
fix(headerBar): tap to scroll to top only on the nearest scrollview

Closes #1329
fix(ionItem): transform to `<a>` tag for ui-sref
add keyboard docs
Shouldn't have been in there
feat(animation): Javascript Animation Service
account for elements under scroll view when resizing
scrollview test hax
test(input): Update input test for pointer events
fix(scroll): Scrolling using pointer events

Scroller only worked with touch or mouse events, but not with MSPointer
or standard pointer events.
fix(tap): Normalize taps w/ pointer events also

Some browsers already remove the delay with certain settings, such as
the CSS property `touch-events: none` or with specific meta tag
viewport values. However, each of these browsers still handle clicks
differently, such as when to fire off or cancel the event (like
scrolling when the target is a button, or holding a button down). For
browsers that already remove the 300ms delay, consider Ionic's tap
system as a way to normalize how clicks are handled across the various
devices so there's an expected response no matter what the device,
platform or version. Additionally, Ionic will prevent ghostclicks which
even browsers that remove the delay still experience.
only wait longer for keyboard resize on android
Toggle button not rendered correctly on Android (closes #1363)
fix(e2e-tests): disable ionic-tap during e2e tests

Closes #1310
chore(main): add isDefined alias for angular.isDefined
fix(ionCheckbox): make ng-checked and ng-change work

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>
```