Added none to vtpversion check
Merge pull request #289 from laf/issue-laf-38

Added none to vtpversion check; bad Cisco - no biscuit.
Initial API release
More updates to api
Moved to use X-Auth-Token header for auth and new url format for later use
Updated url in comments to match new format
Added list devices api call
Added add_device api call
Added documentation and a function to tidy up json output
Added Slim exclusion to .scrutinizer.yml
Fixed some scrutinizer issues
Added urldecode for ports in API to deal with slashes in port names
Started work on creating/updating tokens
Updated api routes to new format + moved includes file to correct location