Merged develop into master

Author: davidenke

README.md

@@ -1,12 +1,16 @@
 # angular-material-keyboard
-Onscreen virtual keyboard for Angular (https://angularjs.org/) using Material (https://material.angularjs.org/) and the Angular Virtual Keyboard by the-darc (https://github.com/the-darc/angular-virtual-keyboard) based on GreyWyvern VKI (http://www.greywyvern.com/code/javascript/keyboard).
+Onscreen virtual keyboard for [Angular](https://angularjs.org/) using [Angular Material](https://material.angularjs.org/) and the [Angular Virtual Keyboard by the-darc](https://github.com/the-darc/angular-virtual-keyboard) based on [GreyWyvern VKI](http://www.greywyvern.com/code/javascript/keyboard).
+
+## demo
+Checkout the [demo.html](https://cdn.rawgit.com/davidenke/angular-material-keyboard/master/demo.html)
 
 ## usage
 * download or clone the latest release, or use your preferred packet manager
 * add the javascript and css files to your project:
 ```html
   <script src="angular-material-keyboard/dist/mdKeyboard.min.js"></script>
   <link rel="stylesheet" href="angular-material-keyboard/dist/mdKeyboard.css">
+  <link rel="stylesheet" href="//fonts.googleapis.com/css?family=Material+Icons">
 ```
 * register module:
 ```javascript
@@ -43,27 +47,31 @@ angular
     // add layout for number fields
     $mdKeyboardProvider.addLayout('Numbers', {
       'name': 'Numbers', 'keys': [
-        [['1', '1'], ['2', '2'], ['3', '3']],
-        [['4', '4'], ['5', '5'], ['6', '6']],
-        [['7', '7'], ['8', '8'], ['9', '9']],
-        [['Bksp', 'Bksp'], ['0', '0'], ['Enter', 'Enter']]
+            [['7', '7'], ['8', '8'], ['9', '9'], ['Bksp', 'Bksp']],
+            [['4', '4'], ['5', '5'], ['6', '6'], ['-', '-']],
+            [['1', '1'], ['2', '2'], ['3', '3'], ['+', '+']],
+            [['0', '0'], ['Spacer'], [','], ['Enter', 'Enter']]
       ], 'lang': ['de']
     });
 
     // default layout is german
-    $mdKeyboardProvider.useLayout('Deutsch');
+    $mdKeyboardProvider.defaultLayout('Deutsch');
   });
 ```
 The first entry in each 'key' array is the default char. The second is used when pressing 'shift' or 'caps lock', the third when 'alt' is rpessed.
 You can use the `spacer` key to provide a gap in the layout.
 
 The `$mdKeyboardProvider` has the following methods:
 
-`getLayout():string` will give you the current used layout
+`getLayout(layout:string):object` will give you the corresponding layout
+
+`getCurrentLayout():string` will give you the current used layout
 
 `getLayouts():array` returns all registered layouts
 
-`useLayout(layout:string):void` tells the directive which layout to use as default
+`defaultLayout(layout:string):void` tells the directive which layout to use as default
+
+`useLayout(layout:string):void` tells the directive which layout to use
 
 `addLayout(layout:string, keys:array):void` expects the name of a new layout to register along an 'keys' array