Created a way to sanitize given numbers
Changed my mind. It should not be a helper
Droped the helper's code and test
Documentation why you never autoupdates :P
Method to validates a single number
Created method to evaluate number list
Let's get the numbers on initialize'
Created method to check if there are some bad boys in
Fixed method name
Created class to handle mobile numbers

It will sanitize and validate the numbers, respecting the following
rules:

- remove all chars except by 0-9a-zA-Z
- only digits
- must have 10 or 11 digits in size
- accept a mix of input