Ported over the Phone Code functionality
Added tests for Phone Code lookup.

Also, updated the README to reflect the added feature.
Oops. Left some ruby artefacts behind in the updated docs.
Revert e954dba..96b592d

This rolls back to commit e954dbadd46a4f60d75f5202d79006b9d812f633.
Revert "Revert e954dba..96b592d"

This reverts commit 4ebc4ac8579eebdf18695b62251b8efda16fd60b.
Second Oops. Messed up the disclaimer's position.
Merge pull request #28 from radzinzki/master

Adding phone code support.