Updated to use ~/.aws/credentials file. Fixes #1.
Added ~/.boto alternative to readme.
Merge pull request #3 from ValleyForgeTech/aws_credentials

Updated to use ~/.aws/credentials file. Fixes #1.
Converting tabs to spaces and updating fabfile.py to use unix line endings.
Merge pull request #4 from ValleyForgeTech/formatting

Converting tabs to spaces and updating fabfile.py to use unix line endings.