revert nodemanager.start.port

[jseagrave21]

What current issue(s) does this address, or what feature is it adding?

• addresses [alpha2] move from twisted to asyncio + new network #934 (review) and [alpha2] move from twisted to asyncio + new network #934 (review)

How did you solve this problem?

• now points to settings.NODE_PORT instead of 8888

How did you make sure your solution works?
manual testing

Are there any special changes in the code that we should be aware of?
no

Please check the following, if applicable:

• Did you add any tests?
• Did you run make lint?
• Did you run make test?
• Are you making a PR to a feature branch or development rather than master?
• Did you add an entry to CHANGELOG.rst? (if not, please do)

[coveralls]

Coverage increased (+0.001%) to 85.052% when pulling 6b3d4fa on jseagrave21:fix-nodemanager-start-port into c95fec6 on CityOfZion:development.

[ixje]

I removed the changelog entry. This is so small (and actually a regression issue that's not out there in any release) that I consider it not big enough to report in the changelog. Still good catch!