Two toolbox patches to sdk-public: sort order for node_list and editor's little helper

I sent the following two patches to sdk-public today (hoping they can make it into 3.8 still):

The first one is rather simple really:

"the attached patch adds choice for ascending or descending (current behavior, which makes sense for sort by published but not really for sort by name) sorting."
 

The second one is somewhat more complex:

" Editor's little helper

this patch adds the "editcreate_object" toolbox widget. It basically offers,
to anyone who has the rights for a given action, to edit, remove or create
new objects and can either be displayed in right toolbar or top/bottom
toolbar.

Note: it doesn't come with thumbnails for admin interface as I'm no graphics
artist."