add ensure => purged to aws_hosted_zone
Added rds resource, unique_az_in_vpc option for subnet, fixed a bunch of insync?-related bugs for the custom nested order-independent array property type.

Also started auto-trimming EOL whitespace :)
Fix updating egress rules for aws_security_group
Merge remote-tracking branch 'upstream/master' into additional_resources

Conflicts:
	lib/puppet_x/bobtfish/unordered_list_prop.rb
aws-sdk handles this if we pass it a symbol
add aws_cache_cluster resource
fix for old ruby syntax
Fix spacing