redirect debug output to a file

None of the following methods work for debug info, I still see it in the terminal only (Ubuntu 10.04):

``` bash
node lib/render.js &>./node.log
node lib/render.js 2>&1>./node.log
node lib/render.js 2>&1 | tee ./node.log
nohup node lib/render.js > ./node.log
```

The only way to do this is:

``` bash
 strace -s 9999 -ewrite -p 2840 &> node.log
```

(where p is phatomjs PID)
