[rt46602] Tidy up run management

Miscellaneous tidying up of run management.  The most significant
change is that "runall.sh" now runs _all_ the tests, even the
ones that can run in parallel.  runsequential.sh is the script
to run tests that have not been converted to parallel running.

bin/tests/system/testsummary.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+#
+# Copyright (C) 2000, 2001, 2004, 2007, 2010-2012, 2014-2016  Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Searches the system test output file (systests.output) and prints a summary
+# of tests passed, failed, not run.  It also checks whether the IP addresses
+# 10.53.0.[1-8] were set up and, if not, prints a warning.
+#
+# Usage:
+#    testsummary.sh
+#
+# Status return:
+# 0 - no tests failed
+# 1 - one or more tests failed
+
+SYSTEMTESTTOP=.
+. $SYSTEMTESTTOP/conf.sh
+
+$PERL testsock.pl || {
+    cat <<EOF >&2
+I:
+I:NOTE: System tests were skipped because they require that the
+I:      IP addresses 10.53.0.1 through 10.53.0.8 be configured
+I:      as alias addresses on the loopback interface.  Please run
+I:      "bin/tests/system/ifconfig.sh up" as root to configure them.
+EOF
+}
+
+status=0
+echo "I:System test result summary:"
+grep '^R:' systests.output | cut -d':' -f3 | sort | uniq -c | sed -e 's/^/I:/'
+grep '^R:[^:]*:FAIL' systests.output > /dev/null && status=1
+
+exit $status