* Update validate-modules
* Validates ANSIBLE_METADATA
* Ensures imports happen after documentation vars
* Some pep8 cleanup
* Clean up some left over unneeded code
* Update modules for new module guidelines and validate-modules checks
* Update imports for ec2_vpc_route_table and ec2_vpc_nat_gateway
A change was merged to the main Ansible core code that can cause
a potential hang if any libraries are called that use threading.
This change was:
4b0aa1214c
This affected the os_object module by causing a hang on the shade
create_object() API call (which in turn calls swiftclient which
uses threading). The fix is to make sure all modules have a main()
that is wrapped with an "if __name__ == '__main__'" check.
A change is coming to Ansible where module params will default to str.
Many of our modules were taking advantage of this by not being explicit
about the type, so they will break when that change merges. This hopefully
catches those cases.
The exception message, when shade fails, will contain much more
specific information about the failure if the exception is treated
as a string. The 'message' attribute alone is usually not helpful.
