Fixing cacert in phar stub
Adding a fix so that manually supplied content-type headers are not clobbered in S3 MUPs
Removing the attempt to recalculate a filesize after a socket timeout as this was causing more problems than fixing
Fixing some environment variable reading logic.
Merge pull request #285 from aws/credential-profiles-check

Fixing some environment variable reading logic.
Updating Amazon SQS to the latest version
Prepping for the 2.6.2 release
Merge branch 'sqs-update'
Fixing changelog date
Adding empty list serialization
Removing no longer used CloudTrail shapes
Updating the CloudFormation client
Adding new regions to Amazon CloudTrail
Updating the changelog
2.6.3 release
Fixing PHP 5.3 syntax
Fixing changelog entry
Fixing a sync issue encountered when no keyPrefix is given
Removing unnecessary URL normalization from SigV4
Prepping for the 2.6.4 release