* Remove DryRun parameter in ec2_vpc_igw_facts check_mode
Using DryRun in check mode causes errors, and is not required
(as nothing changes when calling describe_internet_gateways)
Prevents the following error:
```
{"changed": false,
"failed": true,
"msg": "An error occurred (DryRunOperation) when calling
the DescribeInternetGateways operation: Request
would have succeeded, but DryRun flag is set."}
```
* ec2_vpc_igw_facts pep8 tidy up
Changes to the metadata format were approved here:
https://github.com/ansible/proposals/issues/54
* Update documentation to the new metadata format
* Changes to metadata-tool to account for new metadata
* Add GPL license header
* Add upgrade subcommand to upgrade metadata version
* Change default metadata to the new format
* Fix exclusion of non-modules from the metadata report
* Fix ansible-doc for new module metadata
* Exclude metadata version from ansible-doc output
* Fix website docs generation for the new metadata
* Update metadata schema in valiate-modules test
* Update the metadata in all modules to the new version
* 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
* added ec2_vpc_igw_facts module
* added cr at end of file
* corrected import json in wrong location
* corrected version added
* added snake_case conversion
* updated documentation and fixed for python 3'
* ec2_vpc_igw_facts: simplify logic
Make module arguments more 'Ansiblish'
Remove unnecessary intermediate variables in results generation
Use `ansible_dict_to_boto3_filter_list` rather than duplicating logic
Use `check_mode` rather than pass a `dryrun` argument
Update for flake8 improvements
* updated documentation
Will Thames
Toshio Kuratomi
Matt Martz
naslanidis