1. Changed trigger functions from "opaque" to "trigger" to get rid of the warnings during initial install (only for acs-kernel, there are a lot elsewhere!)
2. Added "embeds" for postgresql and partially for oracle.
3. Added global parameters for postgresql and partially for oracle.
Someone didn't realize that "foo;null" in define_function_args calls sets the default value to 'null' not NULL...this has been there a long time ... maybe even my fault, but I don't remember, it's ancient!