Add support for free tags

Hi there,

I have two vocabularies with free tags with approx. 10 terms in each. Now, adding new CB to term, I get empty select option dropdown, as taxonomy_form_all() fetches only non-free tagged terms.

I know it can be tough if there are thousands of terms in free tagged vocabularies but in some occasions it's needed.

The patch is easy:

custom_breadcrumbs_taxonomy/custom_breadcrumbs_taxonomy.admin.inc, line 28:

- $options = taxonomy_form_all();
+ $options = taxonomy_form_all(1);