feat(dropdown): allow $tooltip config of autoClose

Author: lookfirst

src/dropdown/dropdown.js

@@ -127,7 +127,7 @@ angular.module('mgcrea.ngStrap.dropdown', ['mgcrea.ngStrap.tooltip'])
 
           // Directive options
           var options = {scope: scope};
-          angular.forEach(['template', 'templateUrl', 'controller', 'controllerAs', 'placement', 'container', 'delay', 'trigger', 'keyboard', 'html', 'animation', 'id'], function(key) {
+          angular.forEach(['template', 'templateUrl', 'controller', 'controllerAs', 'placement', 'container', 'delay', 'trigger', 'keyboard', 'html', 'animation', 'id', 'autoClose'], function(key) {
             if (angular.isDefined(tAttrs[key])) options[key] = tAttrs[key];
           });