Cleaned up core.request.pxi

darcs-hash:20090415160201-58103-30afb53235d8d7404913835cc443f2f679c420c5
clients.console bug fix: the old prompt could remain awkwardly visible after prompt update

darcs-hash:20090416100530-b2873-2b7d4c8b49fd8a0db9b88acdfd38c51f6f172d1a