Edited Issue: V8 Debug agent not functioning? [82]

A basic test using "telnet 127.0.0.1 9222" gives:

```
Type:connect
V8-Version:3.30.33.16
Protocol-Version:1
Embedding-Host:CodeTools
Content-Length:0
```

Then enter:

```
Content-Length:46

{"seq":0,"type":"request","command":"version"}
```
I get no response from the debug agent.

Is this basic test valid?