1. Added a check that PG was initdb's with the collation order for characters that we expect.
2. Jon added a "sql/common" directory for the insert statements which load data for acs-references, so I added a new datamodel type "common" to the APM.
3. Created a new db API routine that returns true if a given db_type is compatible with the current RDBMS.
4. Added a workaround for a PL/pgSQL "execute" bug in acs-workflow (other cases had been fixed previously by others but this one was missed)