use debug config

Signed-off-by: hrj <harshad.rj@gmail.com>

tests/debug-config.json

@@ -0,0 +1,14 @@
+{
+  "randomSeed" : 20,
+  "port" : 8888,
+  "captchaExpiryTimeLimit" : 5,
+  "throttle" : 10,
+  "threadDelay" : 2,
+  "captchas" : [ {
+    "name" : "DebugCaptcha",
+    "allowedLevels" : [ "debug" ],
+    "allowedMedia" : [ "image/png" ],
+    "allowedInputType" : [ "text" ],
+    "config" : { }
+  }]
+}