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

Add an "executable" option to the command and shell modules

Make --oneline return one line (except with multiline output)

Make module output more consistent wrt. changed/failed

Updates to git module: use git-fetch and other changes

Wrap getpwnam in try/except in authorized_key module

Handle instances without keypairs

Add svr4pkg module for traditional Solaris packages

Support scp in an ssh connection

The option will be passed to the Popen object created and will be used to
execute the command instead of the default shell.

Currently the message prepared for --oneline mode adds a newline to the msg-string, which is then printed (adding another newline). This change removes the added newline so that successes and failures do not differ in output (except if the output is multiline).

- Make sure exit_json() always returns a changed= value
- Modify the yum module to not return failed=False
- Modify install() and latest() similar to remove() in yum module
- Changed exit_json(failed=True, **res) into a fail_json(**res)
- Make sure yum rc= value reflects loop (similar to how we fixed remove())

without a keypair, so this takes care of that scenario

This also adds module as an argument to keyfile().

Rewrote switch_version() to read .git/HEAD to find branch associated
with HEAD.  If in a detached HEAD state, will read
.git/refs/remotes/<remote>/HEAD.

Fix broken RPM names due to static _rpmfilename

Fix example where imported ssh keys contain spaces

Only print 'Invoked with' if there are arguments to the module

This fixes #1521

This closes #1519

This makes more sense as there is no purpose in running these remotely.

Add $LOOKUP(<lookup plugin>,<data>) as a templating option

Also moves file and pipe to lookup_plugins.

Split of rpm packaging into main/fireball/node-fireball

Support custom jinja2 filters.

Bail out if an action is not a string

Don't require thirsty mode for directory destination

Fix for an exception when for whatever reason the inventory script fails

fixes #1549

Rename pull() to fetch().  It does a git fetch and then a
git fetch --tags.
Add _run() method to handle all subprocess.Popen calls.  Change
all previous calls to subprocess.Popen to use _run().

fix case in which file is created and backup is requested but fails, not it just doesn't attempt to backup the missing file
Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>