galera-4-26.4.10-bp153.2.1

- Migrate to sysusers for creating garb user

- Update to 26.4.10:
  http://releases.galeracluster.com/galera-4/release-notes-galera-26.4.10.txt
- Clean spec file by only allowing building for SLE >= 12 with systemd
- Run spec-cleaner

- pass the version to scons to make the testsuite pass
- use system version of libraries if possible and enable ssl
  support explicitely
- prepare building with cmake. but it is not usable yet

- update to 26.4.9
  http://releases.galeracluster.com/galera-4/release-notes-galera-26.4.9.txt

- refreshed galera-3-25.3.10_fix_startup_scripts.patch

- update to 26.4.6
  http://releases.galeracluster.com/galera-4/release-notes-galera-26.4.6.txt

- allow also newer versions of mariadb

- also conflict with the galera 3 packages

- do not lock openssl to 1.0 anymore

- initial package