Thread: python - fe: Close connection on fatal errors.

Log Message:
-----------
Close connection on fatal errors.

ProtocolError's and transam.Error's indicate an problem with state
transitioning. In such a situation, it is best to simply close the connection as
either a programming error (pqueue bug), a server error, or a
communication error occurred.

Modified Files:
--------------
    fe/src:
        tracenull.py (r1.28 -> r1.29)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/fe/src/tracenull.py.diff?r1=1.28&r2=1.29)