KeyError

[bjourne]

When trying to make a graph:

Traceback (most recent call last):
  File "../git-graph/git-graph", line 139, in <module>
    origRevertHash = messages[originalMessage]
KeyError: 'pubsubhubbub support by samueltardieu'

[daolis]

I will take a look, thanks...

[SebastienRietteMTO]

I think the pull request #4 addresses this problem