Update logging submodule and associated code changes.
Merge pull request #77 from cgay/update-logging

Update logging submodule and associated code changes.
fixed .dsp names
also, no need of working directory
Merge pull request #79 from rjmacready/fix-http-server-demo

fixed .dsp names
Actually, we really need to specify --working-directory, if we call the binary outside the working directory with /dsp
Merge pull request #80 from rjmacready/fix-http-server-demo

Actually, we really need to specify --working-directory, if we call the ...
Update Makefile for correct test suite names.
[server] Clean up shutdown code, including race condition in
join-listeners and use close(sock, abort?: #t) rather than trying to
connect to listeners.
Merge pull request #78 from cgay/test-suite

[server] Fix race condition in join-listeners
[server,client] Use a <request-method> class for request methods.
[tests] Tag tests that use the internet with 'online'.
[tests] Add comment about conflicting-listener-ips-test being expected to fail.
[server,client,common] Use <byte-string> instead of <symbol> for http method.