Release 1.9.0

add missing changelog entries

cmdeploy: suppress SSH login info message

release v1.6.0

fix tests

make another release

make disable_ipv6 optional (and default to false) to not break existi…

…ng chatmail.ini's unneccessarily

update version to 1.3.0

prepare tagging 1.2.0

1.1.0 deployed (to nine) and tested