Description of problem:
We should upgrade from Liquibase 3.0.7 to 3.3.2.
Liquibase changelogs are here: http://blog.liquibase.org/category/announcement (From a quick read, I can't see any problems which should affect us)
Previous updates were covered in bug 813165 and bug 1036435.
Pull request: https://github.com/zanata/zanata-server/pull/761
We need to test that existing databases are migrated without throwing any exceptions (like "change sets check sum 'abc' is now: 'xyz'").
See also https://liquibase.jira.com/browse/CORE-2024 and https://github.com/zanata/zanata-server/pull/811
Verified (master) at f754844e6f68107f09b2b655dcdd429f78dc2167