Finish C implementation of client library.  Hopefully fix RPM specfile
problem with deleting directories on upgrade.

	modified:   bruce.spec.in
	modified:   bruce_noconfig.spec.in
	modified:   src/bruce/client/bruce_client.h
	new file:   src/bruce/client/libbruce_client.c
	deleted:    src/bruce/client/libbruce_client.cc
	modified:   src/bruce/client/status_codes.h