ansible-playbook verifies playbooks exist before running them

remove verbose option on digest call

refers to #1345

Add --limit to calls to ansible and ansible-playbook

--limit takes localhost, FQDN, and 127.0.0.1.

$LOOKUP(dnstxt): handle exceptions

de-spaced

minor freebsd user fixes

Add solaris support to user module

Add environment $LOOKUP plugin

Add Redis GET $LOOKUP plugin

remove support for multiple vars

  renamed

Move get_docstring from module_formatter into ansible/utils

Added jp_mens' presentation and removed dead links

Fix exception catching for Python 2.4

Make sure we get all data

add ec2 module

Addhost module

Add some python packages too

Add DNS TXT record $LOOKUP plugin

run - lets act on those hosts in the next play

Documentation of svr4pkg module breaks 'make rpm'

Without this fix, generating documentation results in:

```
Traceback (most recent call last):
  File "hacking/module_formatter.py", line 376, in <module>
    main()
  File "hacking/module_formatter.py", line 365, in main
    text = template.render(doc)
  File "/usr/lib64/python2.6/site-packages/jinja2/environment.py", line 669, in render
    return self.environment.handle_exception(exc_info, True)
  File "hacking/templates/man.j2", line 20, in top-level template code
    {% for desc in v.description %}@{ desc | jpfunc }@{% endfor %}
  File "hacking/module_formatter.py", line 94, in man_ify
    t = _ITALIC.sub(r'\\fI' + r"\1" + r"\\fR", text)
TypeError: expected string or buffer
```

Turn 'fail' and 'debug' modules into action_plugins