Update timeout detection

plugin/src/HttpError.lua

@@ -15,11 +15,20 @@ HttpError.Error = {
 		message = "Couldn't connect to the Rojo server.\n" ..
 			"Make sure the server is running -- use 'rojo serve' to run it!",
 	},
+	Timeout = {
+		message = "Request timed out.",
+	},
 	Unknown = {
 		message = "Unknown error: {{message}}",
 	},
 }
 
+setmetatable(HttpError.Error, {
+	__index = function(_, key)
+		error(("%q is not a valid member of HttpError.Error"):format(tostring(key)), 2)
+	end,
+})
+
 function HttpError.new(type, extraMessage)
 	extraMessage = extraMessage or ""
 	local message = type.message:gsub("{{message}}", extraMessage)
@@ -48,6 +57,10 @@ function HttpError.fromErrorString(message)
 		return HttpError.new(HttpError.Error.HttpNotEnabled)
 	end
 
+	if lower:find("^httperror: timedout") then
+		return HttpError.new(HttpError.Error.Timeout)
+	end
+
 	if lower:find("^httperror: connectfail") then
 		return HttpError.new(HttpError.Error.ConnectFailed)
 	end