Clean up the installation section and mention pip.
Rough cut at adding a glossary section.  This could definitely use some improvements, proof reading, and lots of cross linking.
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.
add the ability to take variables in the add_host module, and be willing to parse a host:port hostname handed to add_host
Merge pull request #2104 from robparrott/devel

add_host changes to allow vars
Allow add_host to add hosts to multiple groups, groups is now an alias for groupname.
Added a tunneling example
Added a $PIPE_ONCE lookup plugin, that caches the result so it is only evaluated one time.
Fixup the pipe_once plugin
Avoid the 'state=null' coming back from the service module.
Make note about enablement bit
Make the file module work as expected in check mode
Document new PIPE_ONCE macro
Recurse was added in 1.1
Specified when PIPE_ONCE was added.

Also, now shows when "Getting values from files" was added, a sphinx
directive was missing a colon.
Merge pull request #2109 from lorin/pipe_once_docs

Document new PIPE_ONCE macro
resolve merge conflict
Working on complex argument support.
Remove debug print message
Add complex arguments example