Sendgrid-nodejs: To field only accepts plain email

Issue Summary

When using '@sendgrid/mail' to send any email, the 'to' field only accepts plain email addresses, not name/email format (example: {name:'John Doe', email:'[email protected]'} ).

Steps to Reproduce

const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(process.env.SENDGRID_API_KEY);
const msg = {
  to: { email:'[email protected]', name: 'John Doe' },
  from: '[email protected]',
  subject: 'Sending with SendGrid is Fun',
  text: 'and easy to do anywhere, even with Node.js',
  html: '<strong>and easy to do anywhere, even with Node.js</strong>',
};
sgMail.send(msg);

Technical details:

• sendgrid-nodejs Version: master (latest commit: [commit number])
• Node.js Version: 4.1.2