Dismiss tool tip dialog when escape key is pressed.

ansibleworks/ui/static/lib/ansible/directives.js

@@ -164,6 +164,11 @@ angular.module('AWDirectives', ['RestServices'])
             var title = (attrs.title != undefined && attrs.title != null) ? attrs.title : 'Help';
             $(element).popover({ placement: placement, delay: 0, title: title, 
                 content: attrs.awPopOver, delay: 0, trigger: 'click', html: true });
+            $(document).bind('keydown', function(e) {
+                if (e.keyCode === 27) {
+                   $(element).popover('hide');
+                }
+                });
         }
         })