* Remove duplicate route53 options
Duplicate route53 option (certbot-route53:auth) removed.
* Remove duplicate route53 options from help
Removed duplicate route53 options from help by adding a couple of if statements in cli.py.
* Fix formatting
* Use cleaner solution to remove duplicate route53 options from help
Used a cleaner method to remove the duplicate option from the help text
* Fix line too long
* Add regression test
Added a regression test and fixed a couple of minor issues.
* Fix trailing whitespace
* Add missing newline
* Put newline in correct place
