DodoApp: Use JSON file for configuration.

Specify json schema so code editors can validate user input.
Update auth proxy to disable auth on specified paths.

Change-Id: Ic6667d802a9553444d3630c4ff73f4b33304ccfd
diff --git a/core/auth/proxy/unauthorized.html b/core/auth/proxy/unauthorized.html
index 35fafab..130cf81 100644
--- a/core/auth/proxy/unauthorized.html
+++ b/core/auth/proxy/unauthorized.html
@@ -4,8 +4,8 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Auth Proxy</title>
-    <link rel="stylesheet" href="/static/pico.2.0.6.min.css">
-    <link rel="stylesheet" href="/static/main.css?v=0.0.1">
+    <link rel="stylesheet" href="/.auth/static/pico.2.0.6.min.css">
+    <link rel="stylesheet" href="/.auth/static/main.css?v=0.0.1">
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/hack-font/3.3.0/web/hack.min.css">
 </head>
 <body>