nice visual improvments

lua/plugins/demo/hello.lua

@@ -0,0 +1,6 @@
+-- hello.lua
+add_route("/lua/hello", function(req)
+  log("hello.lua handling request for " .. (req.path or "unknown"))
+  -- return (status, headers_table, body_string)
+  return 200, {["Content-Type"] = "text/html"}, "<h1 style='text-align:center;'>Hello from Lua plugin!</h1><br /><p>Why is this here?<br/>To test the Lua plugin manager</p>"
+end)