CORE-1538 diffChangeLog for DB2 injects invalid characters in xml
CORE-1496 Custom Change validation happening before being fully initialized
CORE-1392 When I was in sybase database using liquibase create the index, reported "information_schema.constraints" not found error

Did not fix problem, but now avoids SQL error in favor of a warning
CORE-1357 Postgresql sequences create error in log files
CORE-1224 Enum column types are not appropriately represented in the change log created by generateChangeLog