Revert "Update SEQUENCE_GENERATOR table imports" in order to match
expected data for 3.0 BETA2

This reverts commit 968f57024c42b19c2ef4a0cfc04a601aed37773c.
Update version to point to 3.0.0-BETA2
Switch back to latest 3.0 development version
Fix sequence generator back to expected in latest 3.0 snapshot

This reverts commit f28524c664c74055f7947686f3f41cb2fc5e4ae9.