message: Added create v2 keychain endpoint to bitgo express
  Reviewers: arik, zacleids, tyler, bigly, kevin
  Subscribers: ben
diff: @@ -260,6 +260,13 @@ const handleV2PendingApproval = co(function *(req) {
  return pendingApproval.reject(params);
  });
  +// create a keychain
  +const handleV2CreateLocalKeyChain = function(req) {
  + const bitgo = req.bitgo;
  + const coin = bitgo.coin(req.params.coin);
  + return coin.keychains().create(req.body);
  +};
  +
  // handle wallet share
  const handleV2ShareWallet = co(function *(req) {
  const bitgo = req.bitgo;
  @@ -526,6 +533,9 @@ exports = module.exports = function(app, args) {
  // API v2
  + // create keychain
  + app.post('/api/v2/:coin/keychain/local', parseBody, prepareBitGo(args), promiseWrapper(handleV2CreateLocalKeyChain, args));
  +
  // generate wallet
  app.post('/api/v2/:coin/wallet/generate', parseBody, prepareBitGo(args), promiseWrapper(handleV2GenerateWallet, args));
  