Log Message:
py-s3transfer: updated to 0.3.3

0.3.3
bugfix:dependency: Updated botocore version range to allow for developmental \ 
installs.

0.3.2
bugfix:s3: Fixes boto/botocore

0.3.1
enhancement:TransferManager: Expose client and config properties
enhancement:Tags: Add support for Tagging and TaggingDirective

0.3.0
feature:Python: Dropped support for Python 2.6 and 3.3.