Include new Parameter Types

[neilramsay]

AWS have released new parameter types, which should be included in parameters.
http://aws.amazon.com/about-aws/whats-new/2015/05/aws-cloudformation-supports-additional-parameter-types-and-enhanced-parameter-ui/

[dgomesbr]

@beaknit do you need help maintaining this?

[beaknit]

@dgomesbr - I'd love some help! :-)