RuboCop: upgrade for 0.15
RuboCop: hopefully just for now
minitest-focus 1.1 works with minitest 5
Server::TCP: don’t close the socket explicitly for now
Server::TCP#start: wait for the socket to open
factor out Server::TCP#connectable?
refactor Server::TCP spec
Server::TCP: close the socket after every request
refactor Server::UDP and its spec
drop Server#join
bin/kamerling: don’t join the server
refactor Server::HTTP and its spec
spec_helper: fasten run_all_threads 50 times
Server::HTTP#start: serve HTTPAPI via WEBrick