feat - add scollable property to modal

Adds optional property scrollable to modal. Fixes issue #61

docs/index.html

@@ -2845,6 +2845,10 @@ Optional suffix of modal window class. The value used is appended to the <code>m
 (<i>Note: Since this is directly injected into the class for the modal, you can leverage additional Bootstrap modal classes, such as <code>modal-dialog-centered</code>.
 Ex: <code>md modal-dialog-centered</code>.</i>)</p>
 </li>
+<li><p><code>scrollable</code>
+  <em>(Type: <code>boolean</code>, Default: <code>false</code>)</em> -
+  Indicates whether the dialog will allow its content to scroll. If set to true, this will add the class 'modal-dialog-scrollable' to the rendered modal. </p>
+</li>
 <li><p><code>template</code>
 <em>(Type: <code>string</code>)</em> -
 Inline template representing the modal&#39;s content.</p>

src/modal/modal.js

@@ -102,6 +102,7 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.multiMap', 'ui.bootstrap.sta
       link: function(scope, element, attrs) {
         element.addClass(attrs.windowTopClass || '');
         scope.size = attrs.size;
+        scope.scrollable = attrs.scrollable;
 
         scope.close = function(evt) {
           var modal = $modalStack.getTop();
@@ -484,6 +485,7 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.multiMap', 'ui.bootstrap.sta
           'aria-labelledby': modal.ariaLabelledBy,
           'aria-describedby': modal.ariaDescribedBy,
           'size': modal.size,
+          'scrollable': modal.scrollable,
           'index': topModalIndex,
           'animate': 'animate',
           'ng-style': '{\'z-index\': 1050 + $$topModalIndex*10, display: \'block\'}',
@@ -763,6 +765,7 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.multiMap', 'ui.bootstrap.sta
                   ariaLabelledBy: modalOptions.ariaLabelledBy,
                   ariaDescribedBy: modalOptions.ariaDescribedBy,
                   size: modalOptions.size,
+                  scrollable: modalOptions.scrollable,
                   openedClass: modalOptions.openedClass,
                   appendTo: modalOptions.appendTo
                 };

template/modal/window.html

@@ -1 +1 @@
-<div class="modal-dialog {{size ? 'modal-' + size : ''}}"><div class="modal-content" uib-modal-transclude></div></div>
+<div class="modal-dialog {{size ? 'modal-' + size : ''}} {{scrollable ? 'modal-dialog-scrollable': ''}}"><div class="modal-content" uib-modal-transclude></div></div>