fixed: when generating: insert, update or remove statements we have used prefixes for columns
but the table name was not set in ModelEnv (now we do not use prefixes in such statements)
changed: log_queries field moved from PostgreSQLConnector to DbConnector
git-svn-id: svn://ttmath.org/publicrep/morm/branches/join_models@1195 e52654a7-88a9-db11-a3e9-0013d4bc506e