More recillient SQS error handling

If more than 25 non-fatal exceptions happen, throw the exception anyway. This is to avoid endless loops because AWS
have added a new fatal error code we don't current handle

Expand the list of fatal AWS SQS fatal error codes to be more inclusive

Fix broken unit tests
Grammer natzi fixes
fix travis ci url
fix php5.3
Merge pull request #3 from lorenzo/feature/better-error-handling

More recillient SQS error handling