#261 ns_adp_parse closes conn

[Jamie Rasmussen]

Here's one of a few problems I ran into while trying to
install OpenACS on a recent AOLserver CVS checkout.

I was getting "Error: Tcl exception: adp flush failed:
connection closed
abort exception raised
at line 1 of adp script:"

The code being executed was "ns_adp_parse -string
$chunk". The problem seems to be that previously,
NsAdpFlush (adprequest.c) would do nothing if streaming
was not enabled. Now, AdpEval (adpeval.c) is calling
NsAdpFlush with the new stream parameter set to 0.
Ns_ConnFlush therefore calls Ns_ConnClose.