add_host changes to allow vars

add the ability to take variables in the add_host module, and be willing to parse a host:port hostname handed to add_host

Hate to do this, but URI module docs were constructing messed up RST files, so removing examples for now.  Will ask someone to work on them.

Rough cut at adding a glossary section.  This could definitely use some improvements, proof reading, and lots of cross linking.

update some of many copyright dates but we can just do this when editing each file, not super high priority

pasto and core connection plugins reference fix

Adding a simple EC2 volume module for creation and attach

Added zfs module

Conflicts:
	library/setup

Tweak formatting.

Moved *jina* to *jinja2*

Jinja extensions adds features to the jinja2 templating engine. This
patch allows module loading for the templating engine vian an
ansible.cfg configuration key (jinja_extensions).
The default behaviour doesn't change (no module loading).
Requested modules can be added coma separated in ansible.cfg

Adds whitespace handling in jinja_extension config

Added whitespace handling in jinja_extension configuration directive, so
things stay safe if user adds spaces around comas in the directives
list.

Adds config example for jinja_extensions

Added config example with multiple extentions for jinja_extensions

Solving bug : sysctl check_after failing on multi-value sysctl parameters

Add NetBSD support for 'service' module, and add an example to 'lineinfile'

Add example for adding to sudoers file

Allow end of line comments in inventory file - fixes #2072