Remove output += value; from line 33 of mask.js

[cavarzan]

@candreoliveira, is any issue if I remove the line 33 at mask.js - output += value; ?

I noticed that, removing this line, the $viewValue will not receive invalid chars anymore, which seems to be better and the validation still working.

[candreoliveira]

I like this behavior, don't you?
It shows to user a feedback about the error inputted.

[candreoliveira]

Now you can set this behavior or not. Use the mask-restrict="reject" attribute.