Fix spec, was returning upper cased stuff from the api. Make it case-insenstive.
Add failing spec for verification of address needing more details
Get the correct exception; otherwise we don't know what caused this block to fail
Raise exception for responses which have 'messages', aka 300's
Merge pull request #2 from rainforestapp/master

Fix weridness dealing with 300 response codes and a bug with exception handling, closes lob/lob-ruby#1