pull out a AwsKeychainUtil.load_keychain method
fix dependencies
bump version
more missed dependencies...
bump version
MFA support for aws-creds
Directions for using mfa
Properly link to the MFA documentation
Fix doc header
Fix exports
Fix bash export line

Bash export doesn't allow spaces
bump version to 0.0.9
Run one command with AWS env vars set

If more arguments are passed to aws-creds shell, it'll run the given
command rather than spawning a sub-shell.