Issue Summary

When running under Node 14, the error message printed out when a second instance of Ghost is trying to bind to a port isn't the custom one we have, but the generic one.

To Reproduce

1. Use Node 14
2. Run an instance of Ghost
3. Attempt to run another instance of Ghost on the same port
4. 💥

We have a check like error.errno === 'EADDRINUSE', which evals to `fa

After setup my blog (BlogEngine.net 3.3.8.0 on IIS 8.0) to use https I cannot publish anymore a post. Neither I cannot re-add my blog after remove it.

When I try to do, I receive this error

Open Live Writer

Can't connect to your blog service:
Network Connection Error - Error attempting to connect to blog at:
http://www.myDomain.com

on latest develop, if I run:

go test
ERROR: 2020/10/09 16:43:21 oauth.go:148: viewOauthInit error: pretend unable to write state error
--- FAIL: TestViewOauthCallback (0.00s)
    --- FAIL: TestViewOauthCallback/success (0.00s)
        oauth_test.go:248: 
            	Error Trace:	oauth_test.go:248
            	Error:      	Received unexpected error:
            	            	/logi

It might be a nice addition to have a /tools view that has a couple of useful tools:

• a Twt Hash calculator where given a raw line from a twtxt.txt file will calculate the Twt Hash.

THis is useful for both verification of hashes as well as ahead-of-time computation of Twt Hashes and for replying to a conversation or Twt with legacy clients that don't support Twt Hashes ([dev.twtxt.n