backtrace when EMAIL env variable is not set

[Jelmer Vernooij]

running feed-pqm without EMAIL set in the environment I get a rather nasty exception:

Traceback (most recent call last):
  File "./feed-pqm", line 165, in <module>
    sys.exit(main(sys.argv))
  File "./feed-pqm", line 157, in main
    send_mp(mp)
  File "./feed-pqm", line 98, in send_mp
    my_email = os.environ['EMAIL']
  File "/usr/lib/python2.5/UserDict.py", line 22, in __getitem__
    raise KeyError(key)
KeyError: 'EMAIL'