Ann: SWI-Prolog 5.6.31

Hi,

I've uploaded 5.6.31.  No big changes, but some vital for some users.
Most changes and fixes are in the HTTP and Semweb packages.

New is a little tool to show changes to all ChangeLog files since a
given version from the download page.  Below is the output for the
changes since version 5.6.30.

	Enjoy --- Jan

================================================================
SWI-Prolog changes since version 5.6.30
================================================================

================================================================
+++ ChangeLog	16 Mar 2007 15:30:37 -0000	1.1406
+VERSION 5.6.31 (March 16, 2007)
+
+  * FIXED: told/seen underflow in lock-count on stream. Steffen Schwigon.
+
+  * FIXED: do not stop break-level after exception.  Paulo Moura.
+
+  * ADDED: Safety check in PL_new_term_ref() and PL_new_term_refs().
+    Ben Chistador.
+
+  * FIXED: Restoring generate_debug_info flag over loading .qlf files.
+    Mike Elston.
+
+  * FIXED: library(base64): Determinism while decoding.
+
+  * PORT: Bug#266: Ensure package build exits on first error.  Keri Harris.
+

================================================================
+++ packages/jpl/ChangeLog	16 Mar 2007 10:01:55 -0000	1.10
+Mar 16, 2007
+
+  * INSTALL: Really do not require plunit fro normal distribution.
+

================================================================
+++ packages/http/ChangeLog	15 Mar 2007 14:39:03 -0000	1.58
+Mar 15, 2007
+
+  * ADDED: Include peer in session management for better security.
+  * ADDED: Broadcast session start/end to allow deletion of derived
+    data.
+
+Mar 11, 2007
+
+  * FIXED: http_open/3: send Host: : if port is not 80.
+
+Mar 9, 2007
+
+  * ADDED: reply_html_page/2.  To be documented
+
+  * ADDED: Pass protocol(http/https) into request.
+

================================================================
+++ packages/semweb/ChangeLog	14 Mar 2007 16:11:21 -0000	1.132
+Mar 14, 2007
+
+  * FIXED: rdf_has/3 to use empty reachability matrix after a property
+    is added.
+
+  * FIXED: atom-reference issue in rdf_update/[4,5].  Jochem Liem.
+
+Mar 13, 2007
+
+  * FIXED: Send monitor events on begin/end of nested transactions.
+    Required to make rdf_persistency work properly if RDF operations
+    such as rdf_reset_db and rdf_load are nested in transactions.
+