Update AWS Types
Add attr_accessor for CloudFormationTemplate.Resources
Add Gemfile
Ignore Gemfile.lock
Set resource instance Type correctly in initializer
Also add the abbreviated names to CfnDsl::Types
Merge remote-tracking branch 'VodaFoneAustralia/master'

Conflicts:
	lib/cfndsl/CloudFormationTemplate.rb
	lib/cfndsl/aws_types.yaml

Change-Id: Icda78c85eabe93b8f8ad8a2af7813aace0421cba