Fixed bug with 'hit create' doc string.

Docopt reads parentheses as required parameters and square brackets as optional.
Merge remote-tracking branch 'origin/shell_reorg' into aws_rds
differentiating AWS (Amazon Web Services) from AMT (Amazon Mechanical Turk)

AWS for us relates more to RDS database support
deleting deprecated commands
Alex-ified the AWS RDS database command and made them more interactive/helpful.   (Closes #60)

- added new 'db' sub command with options to changing your database settings and creates MySQL database in the Cloud using AWS
- made command interactive and more helpful to novice users
- error checks fields to make sure they conform to AWS rules
- a little file reorganization here and there
- this is beta-ish still but I believe closes #60