Release 1.2.0 (kontena#2200)

* version 1.2.0

* changelog

* fixup cloud section

* use kontena.io/docs links

* fix docs links to drop .md

* squash rc release changelogs

* fix split change lists

* order word fix

Release 1.2.0.rc3 (kontena#2191)

* version 1.2.0.rc3

* changelog

* changelog: emphasize experiemnta volumes copy from the volumes docs

Release 1.2.0.rc2 (kontena#2159)

* version 1.2.0.rc2

* changelog

* changelog fixed issues

Release 1.2.0.rc1 (kontena#2112)

* version 1.2.0.rc1

* release 1.2.0.rc1 changelog

* point links at github v1.2 docs

* syntaxtypofix

* kontena stack deploy progress, errors is still wip

* fix issue formatting

version 1.2.0.pre3

version: 1.2.0.pre2

Merge branch 'v1.1' into release/v1.1.6

version 1.2.0.pre1

Bump to 1.1.5

Bump to v1.1.5.rc3