Show Vocabularies with terms instead of nodes

Hi, I was testing this modules and I expected that this module will sohw the terms in a block instead of the nodes when I create a taxonomy block for a vocabulary.
I think that does not have any sense to make a block for a entire vocabulary, because all nodes that are asigned via Content Type to that vocabulary will be displayed.

so, I'm submitting a patch that makes this module show the terms instead of nodes in that case.

I don't like taxonomy_menu for this solution, cause it is slower, and has menu caching. I only wanted the terms in a block, not a menu.