AWSObject instance can now be bound to a template when passed to constructor
AWSObject can now have properties, this allow to extend models
Fix AWSProperty that should not output a named dict
Fix some IAM issues

- Make Policy property work again
- Policy prop should be Users, not User
- Have more explicit error checking with list types
Bumping version to 0.3.3
Adding separators options to print to json function
Correct default separators
Merge pull request #19 from DiegoVazquezNanini/feature/separators

Adding separators option to json_dump
Add missing AWS::SQS::Queue properties
Remove some unused imports
Fix a pep8 line too long
Add resource naming (Name Type)
Add cfn2py script to convert json templates to Python

This scipt will try to convert a properly formated CloudFormation
template into Python for use with troposphere. This is a little rough
right now but will do some of the bulk changes necessary. Additional
hand-editing fixups may be needed after conversion.
Add Base64 and FindInMap as default imports for cfn2py
Handle intrinsic functions better in cfn2py
Add EnableDnsSupport and EnableDnsHostnames properties for VPC

Per http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-vpc.html
Merge pull request #23 from bwhaley/patch-1

Add EnableDnsSupport and EnableDnsHostnames properties for VPC
Add VPC support to elasticache [GH-24]
Allow Ref's in the list objects
Allow Ref's in the list objects