simplemenu 6.x-1.8

* Fixed call to menu_tree_output() function.
* Added the option to hide the menubar when empty.
* Added the option to use theme() to create the menu items.
* Added a first patch to the sticky-table hidding under the fixed top menu Patch from #820968: "Fixed" mode blocks sticky table headers
* Optimized the enabled test.
* Added a test, if $(element) is not found, return early.
* Check whether you are in the block area, if so always avoid using the theme() function.
* Added function simplemenu_tree_output() to render menus.
* Added identifiers to all ul and li tags when menu is generated internally.
* Avoid using simplemenu variable if undefined #542948: Javascript error causing problems with other modules and #837956: Simplemenu 1.5 to 1.8 breaks javascript sitewide (if files is not created, old behavior does not take over automatically.)