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

- 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

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>

This avoids a traceback that gave no clue as to what was happening.

This is in line with the change from #1535

Since YAML allows anything, we should enforce that actions are strings.

This closes #1419.

There is no need to require thirsty mode when the destination is a directory. We add the basename of the url to the destination directory and proceed with that. If that file exists in non-thirsty mode continue as expected.

I also cleaned up some of the logic that is no longer necessary if we simply rewrite the destination from the very start the way it is expected.

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

Adding more instance groups

Fixed the way dom0/domU xen role is defined in the setup module

Fix first_available_file and add test-case