First try and making the nagios module NOOPpable

Adding back support for pass=

Add type checking for module arguments, converting as much as possible

Adopt best practices with distributing portfiles

Reorganised packaging and added some notes for less experienced users
on how to get the development version of ansible installed using macports.

fixing changelog

No_log params

module_common: also work if there are no aliases (shell, command, etc) modules

  of parameters
- add support for no_log attribute per-parameter which will not log
  that information to syslog

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.