BPEL Editor has problems dealing with abstract processes

For abstract processes, the namespace is "http://docs.oasis-open.org/wsbpel/2.0/process/abstract" but much of the editor code simply assumes that the namespace is always "http://docs.oasis-open.org/wsbpel/2.0/process/executable". This causes all kinds of problems when doing lookup of namespace prefixes to identify BEPL "built-in" features (e.g. fault names). This is also the reason why the BPELContentDescriber does not recognize an abstract process as a BPEL file.