Update Micro/Validation.php

Add Range rule
Update Micro/Validation.php

Update for uses tabs
Update Micro/Validation.php

clearing formatting.
Update Micro/Validation.php
Update Micro/Validation.php
Update Micro/Validation.php

rename method (semantic name)
Merge pull request #7 from josuesantos93/patch-1

between_rule for Micro/Validation.php