Make pip dry run work better for the common case

This change allows the pip module to figure out if something needs to be done during
a dry run using 'pip freeze'. This is implemented for the most basic case: name,
version and state=(present|absent). In other cases it will fall back to the old
behavior.
Setup module: Additional facts when using ansible with Linux on System z

- Improved parsing of /proc/cpuinfo to take the specifics of Linux on
System z. ansible_processor and ansible_processor_cores are now
completed.
- Also improved virtualization facts in the same environment, parsing
the output of /usr/bin/lscpu to populate virtualization_type and
virtualization_role more precisely. If lscpu is not available, then
stick to the previous behavior.
ec2: ability to list existing volumes
Introduce an ansible_version dict as runner variable

  Given the version:
    "1.6 (ansible_version_var 14499e8bf3) last updated 2014/03/21 17:07:50 (GMT +200)"

  We get the special variable:
    "ansible_version": {
        "full": "1.6",
        "major": 1,
        "minor": 6,
        "revision": 0,
        "string": "1.6 (ansible_version_var 14499e8bf3) last updated 2014/03/21 17:07:50 (GMT +200)"
       }

	modified:   lib/ansible/playbook/__init__.py
	modified:   lib/ansible/runner/__init__.py
	modified:   lib/ansible/utils/__init__.py
Update faq.rst

Change user mailing list link to ansible-project from ansible-devel
reworded copy option docs to be clearer
Ansible inventory file location fixed

according to the official Vagrant guide at http://docs.vagrantup.com/v2/provisioning/ansible.html
set type and default value
Fix parameters check for ec2_vol

Split the error check into two error checks and delay the
checks so that listing existing volumes works more nicely.

The error check should check that:
* One and only one of volume_size id or name is set

This fix adds the 'only one' part of that check and provides
more useful error messages.
implemented the missing "command" option, defaults to "install"...
added missing description...
added missing description of composer command
apache2_module: whitespace cleanup

Remove trailing whitespace.
apache2_module: Handle dep resolution

The apache2_module module did not properly handle when a2enmod would
handle apache module dependancies.  It would always return a state of
changed.  I've updated the regular expression to properly parse that
output as well as the normal output.  A good example of this is the
mod_proxy_http module.
set theory v2, now can handle non hashable items like dicts
Fix portability issue when checking local facts file permission.
changed exception handling for hashable test
support rw bind mode in docker module
fix typo
fix spacing