sample_app - #27: Bug fixed Tags page allow to delete used tags
sample_app - #27: Bug fixed Tags page allow to delete used tags
sample_app - #28: adding used method to verify if any catalog item is in use
sample_app - #28: adding used method to verify if any catalog item is in use
sample_app - #28: avoid of button delete on catalogs
sample_app - #28: bug fixed catalogs allows to delete on used items
Ernesto"s bugs fixed, in of them certifications length