* Basically the moving parts from the original service module arranged in
  subclasses.
* General structure and helper methods comes from the user module.
* Less forgiving to unsupported platforms: it requires a subclass per platform.
  (This makes it easier to work on one platform without having to think about.
  what other platform might be affected in unexpected ways).
* Now has basic OpenBSD support.
* Solaris support needs to be added.

Thanks to @dhozac for general advice and Linux testing.
Thanks to @bcoca for clearing up some FreeBSD questions.

DOCUMENTATION strings

Broken by the move from utils.py to utils/__init__.py

Allows using -e ansible_ssh_port=foo and have it apply to all actions.

Make the default an empty string

Seems a bit strange I have to set a default in two locations.

Use runner's basedir as cwd for -c local

Provide a proper error when the remote_port is not an integer

Allow the remote port to be templated per play

As reported on the mailinglist, the user received a ValueError when the port number was not templated (fixed in #1649) and therefore it was not an integer. This change will catch the exception and provide a proper error so it is more clear.

This was requested on the mailinglist and seems useful.

Use plugin system for modules

Fixes #1395.

Fixes #1624.

Fixes #1020.

Allow adding additional arguments to service module

Some services allow additional arguments to be provided on the command line. This patch makes it possible.

Make deb doesn't work on a small debian wheezy install without this addition to build-depends

Drop dwim prefix from returned items in fileglob

Fixes #1618.

asciidoc is now needed to build the package.

Support for user_data in ec2 module