Support nested variables in varReplace

Preserve trailing newline after templating.

Jinja seems to eat trailing whitespace. A lot of tools complain about this: iptables-restore, iscsid...

Template dest and src parameters

User module fix

Resolves issue #333.  If spwd is not available, the password will
be set regardless.

Issue122 - have all modules log to syslog

Support for branches in git module

Allow unicode (utf8) in templates

The ohai and facter modules use /usr/bin/logger to log the fact that
they have been invoked.  I added 'import os' to the ping module
so that it could have the same syslog statements as the other modules.
I separated the condensed:
    shlex.split(open(argfile, 'r').read())
into two separate statements similar to the other modules.

Since host variables are becoming important, it did not make sense to sustain --override-hosts, with the ability
to create hosts that didn't have inventory information, but also existed, in various groups.

This reverts commit 42b55a07.

This reverts commit f41fb90d.

inventory and indentation

Yaml inventory variable list

Also change test name collision.

Devel - fix issue #315

Conflicts:
	library/user

Prevent facter stderr messages from confusing ansible

Don't let facter spew things to stderr and confuse Ansible, which now blends stdout/stderr due to paramiko
pty usage.

(This commit from lcosmin, manually applied due to github crossup on my part -- MPD)

Fixing append when user already in desired groups

This adds some logic when usings groups possibly in combination with append

  if just specifying groups and the current groups do not match the list
     set groups
  if specifying groups with append and any group thats not in the current groups
     set groups with -a

Code was adding '-a' even when the user was already in the desired groups causing usermod to fail since there was no '-G' option. This is duplicate code (3 lines) from the 'group' section, so could be improved, but it works.