cck_taxonomy_ssu 5.x-1.1

new features:
-restrict how branches are created in free tagging; 1) restrict top level branches only, 2) only allow creation of leaf terms
-add multiple new terms at once using comma-separated string

fixes:
-alphabetizing of terms; now follows this scheme: parent term displayed first (if active), then any branches with children, then leaf terms - each group is alphabetized