Removes force repaint of dropdowns due to fixes in transition module

src/modules/dropdown.js

@@ -464,7 +464,6 @@ $.fn.dropdown = function(parameters) {
                     queue     : false
                   })
                 ;
-                $currentMenu.transition('force repaint');
               }
               else if(settings.transition == 'slide down') {
                 $currentMenu
@@ -712,13 +711,14 @@ $.fn.dropdown = function(parameters) {
         },
         invoke: function(query, passedArguments, context) {
           var
+            object = instance,
             maxDepth,
             found,
             response
           ;
           passedArguments = passedArguments || queryArguments;
           context         = element         || context;
-          if(typeof query == 'string' && instance !== undefined) {
+          if(typeof query == 'string' && object !== undefined) {
             query    = query.split(/[\. ]/);
             maxDepth = query.length - 1;
             $.each(query, function(depth, value) {
@@ -726,18 +726,18 @@ $.fn.dropdown = function(parameters) {
                 ? value + query[depth + 1].charAt(0).toUpperCase() + query[depth + 1].slice(1)
                 : query
               ;
-              if( $.isPlainObject( instance[camelCaseValue] ) && (depth != maxDepth) ) {
-                instance = instance[camelCaseValue];
+              if( $.isPlainObject( object[camelCaseValue] ) && (depth != maxDepth) ) {
+                object = object[camelCaseValue];
               }
-              else if( instance[camelCaseValue] !== undefined ) {
-                found = instance[camelCaseValue];
+              else if( object[camelCaseValue] !== undefined ) {
+                found = object[camelCaseValue];
                 return false;
               }
-              else if( $.isPlainObject( instance[value] ) && (depth != maxDepth) ) {
-                instance = instance[value];
+              else if( $.isPlainObject( object[value] ) && (depth != maxDepth) ) {
+                object = object[value];
               }
-              else if( instance[value] !== undefined ) {
-                found = instance[value];
+              else if( object[value] !== undefined ) {
+                found = object[value];
                 return false;
               }
               else {