title: ng-model throwing error on input type number in angular 1.3
body: <p>I have an input field which I want he user to input a number, so I have made an input field with type="number".</p>
  
  <p>When I use it in 1.2 I get no errors</p>
  
  <pre><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.27/angular.min.js"&gt;&lt;/script&gt;
  &lt;script&gt;
      var app = angular.module('app', []);
      app.controller('MainCtrl', ['$scope', function ($scope) {
          $scope.person = [
              {"name": "Alex","pts": "10"}
          ];
      }]);
  &lt;/script&gt;
  &lt;div ng-app="app"&gt;
      &lt;div ng-controller="MainCtrl"&gt;
          {{person | json }}&lt;br&gt;
          name: &lt;span ng-bind="person[0].name"&gt;&lt;/span&gt;&lt;/br&gt;
          &lt;!-- pts: &lt;input ng-model="person[0].pts"&gt; --&gt;
          pts: &lt;input type="number" ng-model="person[0].pts"&gt;&lt;br?
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p><a href="http://codepen.io/anon/pen/dPKgVL" rel="nofollow noreferrer">http://codepen.io/anon/pen/dPKgVL</a></p>
  
  <p>However when I use it in 1.3 I get  Error: [ngModel:numfmt] but when i update the number it still seems to get bound to the scope.</p>
  
  <pre><code>&lt;script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js"&gt;&lt;/script&gt;
  &lt;script&gt;
      var app = angular.module('app', []);
      app.controller('MainCtrl', ['$scope', function ($scope) {
          $scope.person = [
              {"name": "Alex","pts": "10"}
          ];
      }]);
  &lt;/script&gt;
  &lt;div ng-app="app"&gt;
      &lt;div ng-controller="MainCtrl"&gt;
          {{person | json }}&lt;br&gt;
          name: &lt;span ng-bind="person[0].name"&gt;
          name: &lt;span ng-bind="person[0].name"&gt;&lt;/span&gt;&lt;/br&gt;
          &lt;!-- pts: &lt;input ng-model="person[0].pts"&gt; --&gt;
          pts: &lt;input type="number" ng-model="person[0].pts"&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p><a href="http://codepen.io/anon/pen/YPvJro" rel="nofollow noreferrer">http://codepen.io/anon/pen/YPvJro</a></p>
  
  <p>Am I doing something wrong here or is this nothing to worry about?  I would prefer not to have the errors in my console, when I am trying to debug other issues</p>