Fixup for SuSE and openSuSE.

Account for differences in packages names across RHEL/CentOS
and SuSE/openSuSE.
Added `-y` flag to `query_package`

* library/packaging/pkgin:

Signed-off-by: giorgio-v <giorgio@refactor.it>
Fix for RPM build on opensuse

Opensuse (tested on 12.3) doesn't have package 'python2-devel', just
python-devel. This patch sort this and allow build RPM successfully
on OpenSuse 12.3.
Add ansible.module_utils.rax
Fixed hostname module for RHEL6 Workstation
Added support for parsing in the SLES patch level correctly

On SLES, the setup module was returning the architecture as the distribution version (i.e. platform.dist() didn't quite return the right thing). This change checks for /etc/SuSE-release and grabs the second column in the third line as distribution_version.
Fix checking for existence of EC2 tags
hostname module: add support for Amazon Linux
ReturnData is used throughout but not actually imported
I think that resultant is meant to be the contents of the combined file

It is used for the transfer and as a diff param but isn’t actually
defined anywhere before it’s used. This seemed like the least bad place
to set it.
Passing in complex_args throws ‘unsupported parameter for module’ errors

When using assemble only params (e.g. remote_src) the copy (and I’m
guessing file) modules throw an error that the param isn’t supported.
Simply removing the complex_args param fixes it for me, but I’m not sure
that’s the correct thing to do
The file module doesn’t have it’s module_args reset

I believe that this should be reset in the same way that the copy module
does
dest_contents isn’t always defined, so don’t pass it around

I think this is also a bit of a hack since it should probably be set
before being used, I’m just not sure what it should be set to.
rewrite options to dict parser, fixes #5032
Merge pull request #4938 from giorgio-v/pkgin_y_default

Added `-y` flag to `query_package`
Merge pull request #4996 from sivel/rax-module-utils

Implement ansible.module_utils.rax
Fixes #5023 Convert all modules to use new snippet import pattern
Addresses #5023 Fix import comments
add supported docker version to docs
Merge pull request #5063 from samh/devel

Fixed hostname module for RHEL6 Workstation