Radio buttons are clickable if disabled

Author: bbeyssac

src/types/radio/radio.html

@@ -1,7 +1,8 @@
 <md-radio-group ng-model="model[options.key]">
     <md-radio-button
             ng-repeat="option in to.options"
+            ng-disabled="to.disabled"
             ng-value="option[to.valueProp || 'value']">
             {{option[to.labelProp || 'name']}}
     </md-radio-button>
-</md-radio-group>
+</md-radio-group>