bug en editar coins
Merge branch 'master' of https://github.com/leo7r/Collecworld_py
Merge branch 'master' of https://github.com/leo7r/Collecworld_py
Merge branch 'master' of https://github.com/leo7r/Collecworld_py
validacion catalogo de ref, validacion serie, campo de fecha en tarjetas, titulos nulos en categorias