title: Constantly getting 401 when trying to post to Tumblr blog
body: <p>I'm getting a 401 constantly without further explanation of what the error is when posting to Tumblr via the v2 API.</p>
  
  <p>Requests are below - linebreaks are added for readibility</p>
  
  <pre><code>POST http://api.tumblr.com/v2/blog/[blog].tumblr.com/post HTTP/1.1
  Content-Type: application/x-www-form-urlencoded
  Host: api.tumblr.com
  Content-Length: 303
  
  body=test&amp;
  oauth_consumer_key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&amp;
  oauth_nonce=4712451&amp;
  oauth_signature_method=HMAC-SHA1&amp;
  oauth_timestamp=1312610497&amp;
  oauth_token=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&amp;
  oauth_version=1.0&amp;
  type=text&amp;
  oauth_signature=ccN%2f0E%2bat42BAzdkDPJ%2ffcuMacY%3d
  </code></pre>
  
  <p>I get the following response</p>
  
  <pre><code>HTTP/1.1 401 Not Authorized
  Date: Sat, 06 Aug 2011 06:01:43 GMT
  Server: Apache
  P3P: CP="ALL ADM DEV PSAi COM OUR OTRo STP IND ONL"
  Vary: Accept-Encoding
  X-Tumblr-Usec: D=38791
  Content-Length: 60
  Connection: close
  Content-Type: application/json
  
  {"meta":{"status":401,"msg":"Not Authorized"},"response":[]}
  </code></pre>
  
  <p>Does anyone can spot why?</p>