When a poll is closed none can reopen it. Sometimes it's necessary.
I think this is a good point; thanks for bringing it :-)
we will need an upgrade step to fix workflow for all existing polls, @frapell
Allow polls to be reopened after they have been closed. closes #53
@rafahela, could you please take a look on this? I want to make a 1.2 release soon to include this feature and fix some small issues introduced in the previous one...