Revert "Change. Use httpbin.org to test"

This reverts commit 52834c0.

Author: moteus

test/test_easy.lua

@@ -8,10 +8,7 @@ local scurl      = require "lcurl.safe"
 local json       = require "dkjson"
 local path       = require "path"
 local upath      = require "path".new('/')
-
-local SIZE       = 128
-local url        = "http://httpbin.org/bytes/" .. SIZE
-
+local url        = "http://example.com"
 local fname      = "./test.download"
 
 print("------------------------------------")