Errors from both example config.json URL and URL from Smartthings app
My smart app wasn't showing up in the Marketplace. I had a support person at Samsung tell me that he had to move my account to https://graph-na02-useast1.api.smartthings.com. So if I try to use that URL in config.json, I get:
[11/16/2016, 8:00:29 PM] [SmartThings] Initializing homebridge-smartthings.SmartThings platform...
[11/16/2016, 8:00:29 PM] [SmartThings] Fetching Smart Things devices.
error at req:  Hostname/IP doesn't match certificate's altnames: "Host: graph.na02-useast1.api.smartthings.com. is not in the cert's altnames: DNS:*.smartthings.com, DNS:smartthings.com"
[11/16/2016, 8:00:29 PM] [SmartThings] Invalid Response from API call
[11/16/2016, 8:00:29 PM] [SmartThings] Unknown Capabilities: []

Followed By:
error at req:  Hostname/IP doesn't match certificate's altnames: "Host: graph.na02-useast1.api.smartthings.com. is not in the cert's altnames: DNS:*.smartthings.com, DNS:smartthings.com"
error at req:  Hostname/IP doesn't match certificate's altnames: "Host: graph.na02-useast1.api.smartthings.com. is not in the cert's altnames: DNS:*.smartthings.com, DNS:smartthings.com"

If I use the URL https://graph.api.smartthings.com:443/api/smartapps/installations/
I get:
[11/16/2016, 8:01:57 PM] [SmartThings] Initializing homebridge-smartthings.SmartThings platform...
[11/16/2016, 8:01:57 PM] [SmartThings] Fetching Smart Things devices.
[11/16/2016, 8:01:58 PM] [SmartThings] Error received type AccessDenied - This request is not authorized by the specified access token
[11/16/2016, 8:01:58 PM] [SmartThings] Unknown Capabilities: []

I'm kind of dead in the water at this point.