digitalBush/jquery.maskedinput — pull request #90 by NeriJunior (2012-06-28 13:38:42+00:00)
Title: Support to change default placeholder

I've added a way to change the default placeholder.
Simple use:
```javascript
$.mask.placeholder = '-';
```
before all definitions of masks.

This way:
```javascript
$(element).mask('99-99',{placeholder: '_'});
```
is valid too.