incorrect traceback on application error

[intra-au]

socket.py keeps exception in reraise_exc variable and try to raise it with "raise reraise_exc", however that's causing wrong traceback on stderr.
Since the blank raise raises the last exception below is the fix (I've commented raise "reraise_exc" and just use "raise"
if reraise_exc:
raise

the problem it was causing is the last line of traceback was:

---

File "/usr/local/lib/python2.7/dist-packages/engineio/socket.py", line 230, in _websocket_handler
raise reraise_exc

using just raise it displays correct traceback for the previous exception

[miguelgrinberg]

@intra-au can I ask you to install the master branch direct from git and confirm that the problem is resolved? Thanks!