Fixes #2196.

Fixes using delegate_to: $item within a playbook include.

Primarily to support ${hostvars.hostname-with-hyphens.<var>}.

pass in int() args to get_pty

If LINES or COLUMNS was set, get_pty was failing because it was
expecting an int value to be passed in.

really due for some refactoring, but telling how a service is managed is
a little fuzzy anyway.  on a systemd system typoing the service will now
give you a rather systemd specific error which is somewhat suboptimal.

The service module made some assumptions about how a service should be managed based on what was installed on the system in terms of service
management tools, which meant upstart services on CentOS6 were not startable.  This tweak allows things like vmware-tools to be controlled
via the service module.  More testing on other distributions (particularly with systemd) is presumably needed.

Add a missing :: in an .rst file

Other changes are just eating trailing whitespace.

Add support for connection type in ansible_hosts file

CloudFormation support.

Issue #2158 - add VPC subnet ID support