title: i cant get twilio's node module to get available phone numbers
body: <p>i'v taken the following code straight from the twilio api explorer</p>
  
  <pre><code>// Twilio Credentials 
  var accountSid = 'A***************************b25'; 
  var authToken = 'f5a***************************e2'; 
  
  
  //require the Twilio module and create a REST client 
  var client = require('twilio')(accountSid, authToken); 
  
  client.availablePhoneNumbers('US').local.get({          
      excludeAllAddressRequired: "false", 
      excludeLocalAddressRequired: "false", 
      excludeForeignAddressRequired: "false" 
  }, function(err, data) { 
      data.incomingPhoneNumbers.forEach(function(number) { 
       console.log(number.PhoneNumber); 
      }); 
  });
  </code></pre>
  
  <p>but i get the following TypeError resulting in a 500 response from sails.js</p>
  
  <pre><code>client.availablePhoneNumbers(...).local.get is not a function.
  </code></pre>
  
  <p>i went into the <a href="http://twilio.github.io/twilio-node/index.html" rel="nofollow">http://twilio.github.io/twilio-node/index.html</a> to view the library directly and found the following works but returns a 404</p>
  
  <pre><code>client.availablePhoneNumbers.get(country).local.list(function(err,data){console.log(err,data)})
  
  [Error: [404] Unable to fetch record.
  {"code": 20404, "message": "The requested resource /2010-04-01/Accounts/US/AvailablePhoneNumbers/A***************************b25/Local.json was not found", "more_info": "https://www.twilio.com/docs/errors/20404", "status": 404}]
  </code></pre>
  
  <p>any help with this would be greatly appreciated.</p>