Display a message for users whose have wallet:: but not profile::

js/models/Wallet.js

@@ -165,14 +165,32 @@ Wallet.COPAYER_PAIR_LIMITS = {
   12: 1,
 };
 
+Wallet.getStoragePrefix = function() {
+  return 'wallet::';
+};
+
 Wallet.getStorageKey = function(str) {
-  return 'wallet::' + str;
+  return Wallet.getStoragePrefix() + str;
 };
 
 Wallet.prototype.getStorageKey = function() {
   return Wallet.getStorageKey(this.getId());
 };
 
+/**
+ * check if any wallet exists on storage
+ * @param opts.storageOpts
+ * @param cb
+ */
+Wallet.checkIfExistsAny = function(opts, cb) {
+  var storage = opts.storage || opts.pluginManager.get('DB');
+  storage.getFirst(Wallet.getStoragePrefix(), {
+    onlyKey: true
+  }, function(err, v, k) {
+    return cb(k ? true : false);
+  });
+};
+
 /* for stubbing */
 Wallet._newInsight = function(opts) {
   return new Insight(opts);