Make all lookup plugins accept lists as arguments

Alphabetic inventory hostname patterns.

Allows whitespaces around assignment operators when defining group variables

fix documentation for authorized_key in advanced playbooks page in docsite

Allow parameterized playbook includes to define complex variables

To be used like:
- include: playbook.yml
  vars:
    mylistvar:
    - item1
    - item2

Lookup plugins should accept a string or a list, and always return
a list, even if it is just one item.

Change message when a play matches no hosts

change error message on check_conditional when variable does not exist

Make use of yes/no booleans in playbooks

fixes #1767 parsing serial from extra_vars

fix and clarify 'script' docs

Fix hostname expansion bug in inventory parser

cleanup Example output in ansible-doc

when defining group variables

At the moment Ansible prefers yes/no for module booleans, however booleans in playbooks are still using True/False, rather than yes/no. This changes modifies boolean uses in playbooks (and man pages) to favor yes/no rather than True/False.

This change includes:

- Adaptation of documentation and examples to favor yes/no
- Modification to manpage output to favor yes/no (the docsite output already favors yes/no)

Ensure files created by authorized_key have correct selinux context

Three changes:
* Add set_default_selinux_context() to module_common that sets
  a file's context according to the defaults in the policy
* In atomic_replace(), set the default context for the file if
  selinux is enabled and the destination file does not exist.
* In authorized_key, set the default context when creating
  $HOME/.ssh and $HOME/.ssh/authorized_keys.  If these already
  exist, this won't touch them.

Missing colon in $FILE example docs

Subverion module improvements

I guess my previous pull request was confusing, by changing the message to something we already do for tasks, it makes it more clear.

Just like we say:

    TASK: [foo bar]
    skipping: [system01]

The message now is more clear:

    PLAY [wagawaga] *******************************
    skipping: no hosts matched

It makes it clear that we are skipping the play, just as is done for a task when a condition is not met.

mail module: add MIME attachments, port and addresses with phrases

add list-hosts support to bin/ansible

Allow regex to be used to select hosts in addition to fnmatch pattern

Allow intersecting host patterns by using &

Fix ppa syntax in apt_repository module doc

ansible-doc: print Notes heading only if there are any

pip module improvements

Tweak docs for correct paths and filenames for ec2 inventory