additional cleanups, CHANGES note, release note

10 jobs for thread-always in 22 minutes and 14 seconds (queued for 41 seconds)
Status Job ID Name Coverage
  Build
passed #2190
docker linux
build:debian:buster:i386

00:11:57

passed #2187
docker linux
build:debian:jessie:amd64

00:10:59

passed #2188
docker linux
build:debian:jessie:i386

00:11:02

passed #2191
docker linux
build:debian:sid:amd64

00:11:29

passed #2192
docker linux
build:debian:sid:i386

00:12:01

passed #2189
docker linux
build:debian:stretch:amd64

00:11:22

passed #2193
docker linux
build:ubuntu:trusty:amd64

00:10:56

passed #2194
docker linux
build:ubuntu:xenial:i386

00:11:24

 
  Test
passed #2195
linux docker
test:debian:sid:amd64

00:10:10

passed #2196
linux docker
test:debian:sid:i386

00:10:00