Fix CliRunnerCallbacks.on_file_diff in callbacks.py

When running ansible -C, I get a traceback that ends with
    AttributeError: Values instance has no attribute 'diff'
This fixes on_file_diff to behave similar to
PlaybookRunnerCallbacks.on_file_diff().

Fixes #2218.

Updated virtualenv note

Fixes transferring newlines in args:, as well as """.

Add lvol module to manage logical volumes.

Work around hanging module.  Thanks to Daniel Hozac for the tip.

Fixes using $TEMPLATE() and hostvars in a task without a name, among
other things.

Better documentation, removed runfcgi, added createcachetable

Adding a script to auto-generate an authors file, runnable from 'make authors', which is called from 'make docs/webdocs'.

Conflicts:
	library/file

Add some aliases for django manage, mainly around underscores, and use the newer (easier) way to do module docs.  Also
add list of avail commands to docs.

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.

This gives a more readable output when producing diff for a task
with multiple items (with_items).

fixing changelog

No_log params

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