Simplified ignore for cache/.
Updated .mailmap to add Stephen.
Added placeholder .dummy to cache/api/ and deleted cache/ADOdb/.
Re-factored AttributesDatabasePreserver to remove addRow() and make column default handling simpler.
Added CommonSqlQueries::getDeleteFromTable() and getDeleteFromTableWithOwnerID() methods.
Updated Eve/ and Map/ classes to use CommonSqlQueries::getDeleteFromTable() to keep from building up unwanted 'history'.