lifecycle-data-1-bp154.1.20

- boo#1082532: note PostgreSQL EOL dates based
  https://www.postgresql.org/support/versioning/

- boo#1052022: Ensure lifecycle-data-openSUSE is installed with
  zypper-lifecycle-plugin, move supplements() to correct subpackage

- Deprecate uClibc, it's unmaintained and has multiple security
  bugs bsc#1044858 bsc#1044859

- ruby 2.2 is dreprecated rather than 2.4
- add lxdm, shipped on Leap but deprecated

- Deprecate mysql-community-server bsc#1043328

- initial package