Function File: [funlist, funloc, catlist, catloc, catlvl] = __matlabfunctionlist__ (url)
Return a list of matlab functions, funlist, from the url. It will also return the list of locations of the functions within the file, the categories in the url (catlist), the location of the categories within the url (catloc), and the level of the categories (catlvl, 2 = h2, 3 = h3, ...). Note, the locations may not be sorted or unique.