touch up to yum module.

fix a couple of bugs
comment about state='latest'

Add manpage for ansible-playbook, since it is a command.  More detailed docs will remain on the web site.

runner buglet and yum module

runner: fix buglet causing logger output to include a u for the command
yum: add yum module:
   ensure=installed pkg=name/name.arch/name-ver-rel.arch
   ensure=removed pkg=name/name.arch/name-ver-rel.arch
   list=installed
   list=updates
   list=available
   list=pkgspec
   list=repos

if we've failed a connection to a host - we cannot set items to the

'conn' object since it is not an object on failure - it's a string.

Drop other man(5) pages so we can have only one source of docs -- ansible.github.com for those operations.
Easier to maintain and much more verbose.

Adding version and author to ansible init.

src= parameters for template and copy operations can be relative to the playbook (for /usr/bin/ansible-playbook) or current directory (for /usr/bin/ansible)

still may not be parameterized because it does not make sense to import them more than
once since they are keyed by name.

independent of output, and can also see all the output nicely grouped together if we want
to reformat it or make summaries of statistics.

Code needs cleanup, but works

as well as template files.  PLUS, variables are now expressed in playbooks without having
to know about the setup task, which means playbooks are simpler to read now.

Fix the py[co] part of the clean target in the make file

Read some defaults from the environment

environment (ANSIBLE_{LIBRARY,HOSTS}) if defined.

Update manpages to represent this.

Also update the env-setup script to set ANSIBLE_{LIBRARY,HOSTS}.

Fix parse_hosts to not blow up on ungrouped hosts.

Add environment updating script 'env-setup' to facilitate running ansibl...

Freshen up Makefile clean target