TESTS: move tests/*.cfg to tests/config

These are a collection of test files for a variety of features (old or
more recent). 2 or 3 files were found lying there non-committed and
were moved at the same time. A few deprecated or obsolete keywords were
updated to their recent equivalent. Many of these configurations are
made to trigger different parsing errors so it is normal that plenty
of them fail.

Now the tests directory is cleaner and easier to navigate through.
diff --git a/tests/conf/test-http-send-name-hdr.cfg b/tests/conf/test-http-send-name-hdr.cfg
new file mode 100644
index 0000000..f424dfe
--- /dev/null
+++ b/tests/conf/test-http-send-name-hdr.cfg
@@ -0,0 +1,33 @@
+# Test Rewriting Host header
+global
+       maxconn 100
+
+defaults
+	mode http
+	timeout client 10000
+	timeout server 10000
+	timeout connect 10000
+	balance roundrobin
+
+listen send-name-silo-id
+	bind :8001
+
+	# Set the test conditions: Add a new header
+	http-send-name-header X-Silo-Id
+	server srv-silo1 127.0.0.1:8080
+
+	# Add headers containing the correct values for test verification
+	http-request add-header X-test-server-name-header X-Silo-Id
+	http-request add-header X-test-server-name-value srv-silo1
+
+listen send-name-host
+	bind :8002
+
+	# Set the test conditions: Replace an existing header
+	http-send-name-header host
+	server srv-host 127.0.0.1:8080
+
+	# Add headers containing the correct values for test verification
+	http-request add-header X-test-server-name-header Host
+	http-request add-header X-test-server-name-value srv-host
+