Change various types to the correct signedness to avoid warnings.

Also cast the check of "inet_addr" to guint32. The POSIX declaration
of this function returns in_addr_t which is the same as uint32_t.
Windows does not define this type and instead uses unsigned long.

src/common/dbus/dbus-client.c

@@ -67,7 +67,7 @@ hexchat_remote (void)
 	gboolean hexchat_running;
 	GError *error = NULL;
 	char *command = NULL;
-	int i;
+	guint i;
 
 	/* if there is nothing to do, return now. */
 	if (!arg_existing || !(arg_url || arg_urls || arg_command)) {