bump to v1.9.0 (zalando#2177)

* bump to v1.9.0
* some minor UI config updates
* bump UI package.json to 1.9.0, too

bump to v1.8.2 (zalando#1932)

* bump to v1.8.2
* update opconfig docs around pod environment secret
* fix z-index of UI tooltip

bump to v1.8.1 (zalando#1884)

* bump to v1.8.1
* quote users in REVOKE stmt

bump to v1.8.0 (zalando#1852)

* bump to v1.8.0
* fix helm instructions for ui
* update UI version package.json
* update ui chart

bump operator to v1.7.1 (zalando#1670)

* bump operator to v1.7.1
* update UI image in manifest example

bump operator to v1.7.0 (zalando#1599)

bump operator to v1.6.3 (zalando#1503)

Bump v1.6.2 (zalando#1433)

* helm chart remove 1.6.0 archive from 1.6.0 archive

* bump operator to v1.6.2

* fix pointer deref

* skip connection pooler sync when empty

* revert pooler change and minor update to version msg

* do not log query on error when creating or altering users

bump to v1.6.1 (zalando#1367)

* bump tp v1.6.1
* update UI chart
* improve docs and manifest examples
* use Spilo 2.0-r4 and update docs
* minor updates to admin docs

fix port and quickstart (zalando#1266)