Merge pull request #35 from taschetto/master

Add ibox helper.
Merge pull request #36 from taschetto/master

General refactory.
Merge pull request #37 from taschetto/master

Fix #11, #25 and #30.
Merge pull request #38 from taschetto/master

Ajuste no alinhamento de campos numéricos em tabelas.
Merge pull request #40 from taschetto/master

Fix #39.