fix travis issues

Summary:
- Since the tests run slower on travis, fix one test to have a longer unlock
  period so that it reliably succeeds.

- Change the version of node used by travis from 0.11, which is an unsupported
  experimental version, to 0.10, which is a supported version most people use
  in production.

- Update an assertion in one test to give more useful feedback when an error.

Reviewers: benchan

Reviewed By: benchan

Subscribers: ben

Differential Revision: https://phabricator.bitgo.com/D864

Author: Ryan X. Charles

.travis.yml

@@ -2,7 +2,7 @@ language: node_js
 before_install:
   - npm install npm -g
 node_js:
-  - '0.11'
+  - '0.10.37'
 env:
   matrix:
     - TEST_SUITE=unit

test/bitgoExpress.js

@@ -194,7 +194,7 @@ describe('Bitgo Express', function() {
     it('send coins - wallet3 to wallet1 with fee', function(done) {
       agent.post('/api/v1/user/unlock')
       .set('Authorization', 'Bearer ' + TestBitGo.TEST_ACCESSTOKEN)
-      .send({ otp: '0000000', duration: 5 })
+      .send({ otp: '0000000', duration: 10 })
       .expect('Content-Type', /json/)
       .end(function(err, res) {
         if (err) { throw err; }
@@ -206,7 +206,7 @@ describe('Bitgo Express', function() {
         .expect('Content-Type', /json/)
         .end(function(err, res) {
           if (err) { throw err; }
-          res.should.have.status(200);
+          res.status.should.equal(200);
           res.body.should.have.property('tx');
           res.body.should.have.property('hash');
           res.body.should.have.property('fee');