fix(ionContent): do not let child scopes inherit has-* classes

Fixes #924
test(ionContent): reword to be clearer
docs(ionContent): make drag-content examlpe simpler

Closes #929
chore(build): remove double banner from css file

Closes #899
docs($ionicModal): fix usage example header title

Closes #921
fix(ionView): do not set navbar title if no title attr set

Fixes #915

BREAKING CHANGE: Before, if you did not have a `title` attribute set on your
ion-view, it would transition into that view and erase the navbar's current
title.

Now, if your ion-view does not have a `title` attribute set, the new
view will be transitioned in, but there will be no title change.

If you wish to have a blank title on your new view, you must now
explicitly set your `ion-view`'s title attribute to an empty string.

To migrate your code, change from this:

```html
<ion-view></ion-view>
```

To this:

```html
<ion-view title=""></ion-view>
```
site search index updates
Update ionicContent.js

Changed the javascript example for ion-refresher.  Moved the call to stop the spinning into a finally block.
Merge pull request #934 from keithdmoore/patch-1

Update the docs for ion-refresher
fix(active): Taps/clicks now use .activated instead of .active, closes #913

Both .active and .activated classes exist within the css now. When a
button/link/item is “active”, the .activated class gets added and
removed. This is so Ionic is not removing any user defined .active
classes, but also so users can use Ionic’s active classes (but not have
to worry about them being removed automatically by Ionic). Styled the
same by default, but easily overridden.
update ionicActivator tests
feat(ionCheckbox): allow ng-disabled attribute

Closes #939.
feat($ionicSideMenuDelegate): add getOpenRatio() method

Closes #944.
docs($ionicSideMenuDelegate#getOpenRatio): reword & expand
perf(delegateService): $getByHandle tiny improvement
docs(code pens): Added codepens to checkbox, radio, toggle
docs(ionNavView): Fix example
docs(keywords): Add some keywords to checkbox/radio/toggle
Ionitron tweet

Must be run with release command

Move code to bottom of gulp file

Add twitter keys

Send off a test tweet

Update twitter secrets

Awesome it worked, delete always tweet
fix(item): Fix delete icon alignment in .item-icon.left, closes #946