move wellKnownJson to domains

after some more thought:
* If app moves to another location, user has to remember to move all this config
* It's not really associated with an app. It's to do with the domain info
* We can put some hints in the UI if app is missing.

part of #703

src/domaindb.js

@@ -16,14 +16,18 @@ var assert = require('assert'),
     database = require('./database.js'),
     safe = require('safetydance');
 
-var DOMAINS_FIELDS = [ 'domain', 'zoneName', 'provider', 'configJson', 'tlsConfigJson' ].join(',');
+var DOMAINS_FIELDS = [ 'domain', 'zoneName', 'provider', 'configJson', 'tlsConfigJson', 'wellKnownJson' ].join(',');
 
 function postProcess(data) {
     data.config = safe.JSON.parse(data.configJson);
-    data.tlsConfig = safe.JSON.parse(data.tlsConfigJson);
     delete data.configJson;
+
+    data.tlsConfig = safe.JSON.parse(data.tlsConfigJson);
     delete data.tlsConfigJson;
 
+    data.wellKnown = safe.JSON.parse(data.wellKnownJson);
+    delete data.wellKnownJson;
+
     return data;
 }
 
@@ -86,6 +90,9 @@ function update(name, domain, callback) {
         } else if (k === 'tlsConfig') {
             fields.push('tlsConfigJson = ?');
             args.push(JSON.stringify(domain[k]));
+        } else if (k === 'wellKnown') {
+            fields.push('wellKnownJson = ?');
+            args.push(JSON.stringify(domain[k]));
         } else {
             fields.push(k + ' = ?');
             args.push(domain[k]);