* Add Check Mode capability to kernel_blacklist module
* Add suggested changes from @tmshn
* Pass a bool into `Blacklist` that'll just be `module.check_mode`
* Move detection and creation of a file to a separate function within `Blacklist`
* If there's no file on the system and we are running under `Check Mode`, set `self.filename` to `os.devnull` AND mark a change, as the module would have created an empty file.
* Whenever a `self.filename` is being opened in a mode where changes can be made, replace with an if statement that checks `self.checkmode` and if true then open up `os.devnull` instead
* 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
Imran Hussain
Matt Martz
James Cammarata