- Better restconf debug: when restconf debug flag set in datastore, ensure the process is started with -D set

- Fixed native http support for base container
- Changed test certs and restconf scripts to functions

test/test_restconf_basic_auth.sh

@@ -193,7 +193,7 @@ function testrun()
 #    echo "expectmsg:$expectmsg"
     
     # Change restconf configuration before start restconf daemon
-    restconf_config $auth false
+    RESTCONFIG=$(restconf_config $auth false)
 
     # Start with common config, then append fcgi/native specific config
     cat <<EOF > $cfg