This implements a basic --check mode which for now is only implemented on template & copy operations.  More detail will be shared with the list
shortly.

Two problems here
* unchecked exception handling and erroneous assumption as to why
  an exception might fire
* although the file module expands the path, when using file_args
  the unexpanded path is passed.

Expected result: ~/path/to/file should work fine
Actual result: exception is because it doesn't find file with a message
about not being able to get the selinux context

 - added terse syntax to modules.rst
 - added description of special variables to template module

Various performance streamlining and making the file features usable in all modules without daisy chaining.

implement lookup plugins for arbitrary enumeration over arbitrary things.   See the mailing list for some cool examples.

Various tweaking to get the module formatter to work for 'make docs' in the docs project.  Likely the templates for other module formatting types will have to change
by the time I'm done.

commit 80a26a8175b779b707bc08e9d28c451c30ee4ada
Merge: b25b9fd8 61e9b27
Author: Michael DeHaan <michael.dehaan@gmail.com>
Date:   Tue Sep 18 21:01:47 2012 -0400

    Merge branch 'devel' of git://github.com/alopropoz/ansible into file-force

commit 61e9b27df25c36015c2b1b4a58155ccfdfb993a0
Merge: 3f6f329 16bf3e15
Author: Aleksej Romanov <alopropoz2@yandex.ru>
Date:   Thu Sep 13 20:48:02 2012 +0700

    Merge remote branch 'upstream/devel' into devel

commit 3f6f3291dffefa2a802def25a1e8bd38de0cba75
Author: Aleksej Romanov <alopropoz2@yandex.ru>
Date:   Thu Sep 13 20:41:31 2012 +0700

    'force' option for 'file' module.

commit 6223bba94160c60153448655803d084f7eaa5168
Author: Aleksej Romanov <alopropoz2@yandex.ru>
Date:   Thu Sep 13 20:40:19 2012 +0700

    changed = True when changing symlink referent, #1008. Needed for tests.

As discussed in #923

Make pep8 tests run against the library directory as well, and associated tweaks (mostly to indentation) in the library
directory.

This updates set_owner_if_different() and set_group_if_different()
to not implicitly recurse when setting ownership (whether user or
group).  It drops the os.system() call and replaces it with os.chown().
Resolves issue #825.

The recursion should be explicit.  A recurse=yes|no option should be
added to the file module.

Relative symlinks don't really work (module bug) and would be confusing anyway, better to be explicit.

whitespace + remove deprecated YAML parser (migration script lives in examples/scripts and warning was added
in 0.6 release)

Add encoding lines to python modules such that they can take unicode options if they are fed them, since the
AnsibleModule stuff no longer base64 encodes for simplicity and speed reasons.

secontext is used internally and should not be in argument_spec

Port the file module over to the new common code infrastructure + cleanup some redundant imports since the module code already imports those things.