https://github.com/liquibase/liquibase/pull/164 Only use JdbcSnapshotGenerators on AbstractJdbcDatabases.
                                                Edit
Working on updating liquibase-hibernate to Liquibase 3.x, but the new snapshot framework is a bit too eager. Added a guard so it doesn't try to run the snapshot generators against unsupported databases.
Merge remote-tracking branch 'origin/3.0.x' into 3.0.x