title: nodemcu uart undefined constants?
body: <p>Using nodemcu_integer_0.9.6-dev_20150704.bin I get these strange things:</p>
  
  <pre><code>&gt; uart=require("uart")
  &gt; =uart
  romtable: 40240a00
  &gt;=uart.PARITY_NONE
  nil
  &gt; =uart.STOPBITS_1
  nil
  &gt; 
  </code></pre>
  
  <p>As a result, I'm not able to do this:</p>
  
  <pre><code>uart.setup(0, 2400, 7, uart.PARITY_NONE, uart.STOPBITS_2, 0)
  </code></pre>
  
  <p>Just because uart.PARITY_NONE is not defined, and:</p>
  
  <pre><code>stdin:1: bad argument #4 to 'setup' (number expected, got nil) 
  </code></pre>
  
  <p>Probably I should use a newer firmware, but the cloud build service does work for me. I just requested a new firmare and tried to flash to the device - but it does not work. When I restart the device (after flashing), the WiFi led is blinking like crazy and it sends garbage over the serial port.</p>