adamwathan/bootforms — pull request #21 by moura137 (2014-08-06 14:13:02+00:00)
Title: New Feature, insert input-group in controls

- Created element InputGroup
- Add method inputGroup in class FormGroup and GroupWrapper

#### Usage
```
BootForm::text('Username', 'username')->inputGroup()->beforeAddon('@')

BootForm::text('Site', 'site')->inputGroup()->afterAddon('.com.br')
```