More intelligent handling of list locators

Currently the various list-locator-entries for “items per page” and “sorting” are displayed regardless if the current list has enough items to require this.

Looks quite dumb, if you have 5 items in a list and you are nevertheless offered the option to select 50, 100, 200 items per page…

Or a [B]sort [/B]option with only one item in a list…

I could cope with this in the templates, but this should rather be done by the shop itself…

(Sorry, I am a perfectionist…:D)