Merge pull request ionic-team#1639 from arturokunder/patch-1

Update actionSheet.js

Author: adamdbradley

js/angular/service/actionSheet.js

@@ -74,7 +74,7 @@ function($rootScope, $document, $compile, $animate, $timeout, $ionicTemplateLoad
    *  - `[Object]` `buttons` Which buttons to show.  Each button is an object with a `text` field.
    *  - `{string}` `titleText` The title to show on the action sheet.
    *  - `{string=}` `cancelText` the text for a 'cancel' button on the action sheet.
-   *  - `{string=}` `destructivetext` The text for a 'danger' on the action sheet.
+   *  - `{string=}` `destructiveText` The text for a 'danger' on the action sheet.
    *  - `{function=}` `cancel` Called if the cancel button is pressed, the backdrop is tapped or
    *     the hardware back button is pressed.
    *  - `{function=}` `buttonClicked` Called when one of the non-destructive buttons is clicked,