message: Pass iscold variablet to server
  Reviewers: benchan, barath
diff: @@ -91,6 +91,7 @@ Wallets.prototype.generateWallet = function(params, callback) {
  var backupKeychain;
  var bitgoKeychain;
  var userKeychainParams;
  + var isCold;
  // Add the user keychain
  var userKeychainPromise = Q.fcall(function() {
  @@ -98,6 +99,7 @@ Wallets.prototype.generateWallet = function(params, callback) {
  if (params.userKey) {
  userKeychain = { 'pub': params.userKey };
  userKeychainParams = userKeychain;
  + isCold = true;
  } else {
  // Create the user and backup key.
  userKeychain = self.baseCoin.keychains().create();
  @@ -155,7 +157,8 @@ Wallets.prototype.generateWallet = function(params, callback) {
  userKeychain.id,
  backupKeychain.id,
  bitgoKeychain.id
  - ]
  + ],
  + isCold: isCold
  };
  if (params.enterprise) {
  