Added AWS::IAM::Role
Fixed PolicyDocument typo in AWS::IAM::Policy
Fixed typo in "AWS::ElastiCache::SecurityGroupIngress"
Added a space before a colon
Added AWS::IAM::InstanceProfile
Removed erroneous IAMRole data type
Added plurals for AssumeRolePolicyDocument and PolicyDocument
Merge pull request #1 from josh-wrale/iam_role_type

Misc. IAM Role fixes