rhn_channel module

Support systemd template service unit files

Add quotes around postgresql database name

disabled appending file with garbage when regexp didn't match.

Fix pathnames in comments

Limit scope of arguments to service_control() in service module

Changed python interpreter to be consistent in these modules as compared...

Fix broken virtualenv link in pip documentation.

Add links to the ansible-examples repository in docs

Fixes for get_remote_head in git module

See issue #2471

This fixes get_remote_head() to be smarter about how to check remote
head.  It checks if it is a remote branch or tag and then checks for the
remote object id associated with it.  If it is sha1, get_remote_head()
returns it as-is since there doesn't appear to be a way to check a
remote repository for a specific object/sha1.  is_remote_tag() is added
to help out the new functionalit in get_remote_head().

In main(), if check_mode is true and version is a sha1, the module now
checks to see if the object is present.

This fixes handling of arguments (module argument) in service_control().
It is now locally scoped such that modifications to it, in the case of a
systemd host, do not later impact subsequent calls to service_control().
See issue #2449.

Without patch:
ansible-service[6177]: Command /usr/bin/systemctl stop cups cups , daemonize True

With patch:
ansible-service[6475]: Command /usr/bin/systemctl start cups , daemonize True

I also updated the comments to reflect the case where systemd is really
being called.

invalidate group cache when adding a new group

invalidate group cache so that a group added by the add_host module will be relfected in the groups variable in later plays.

Mention of ansible-doc and man pages for modules.

fail when service cannot be found by chkconfig

module_formatter.return_data: use UTF-8 encoding

The text parameter can contain non-ASCII characters, so we'll encode it
using UTF-8. For example the DOCUMENTATION of the bzr module has such
characters in the name of the author.