Add 3 new domain formats in the domain-list.php

Add 3 new domain formats:
- http://example.com
- http://www.example.com
- .example.com
-  .example.com (one space befere the dot)

to avoid the false positives with some domains, like nosotras.com, because
the algorithm detects the as.com domain
Add a new test to avoid false positives

Add a new test to avoid false positives, because I have a problem
with the domains that contains a blocked domain, like nosotras.com,
that contains the as.com domain