Add Poll Feature

[Albert Bori]

I should be able to create a new discussion that is also a poll.

The poll can have the following options

• Allow users to select multiple items
• Allow suggestions (lets users add items to the poll)
• Specify a poll closed date (even after poll has been created)
• Hide voters names

The poll should track votes by user or IP address (if no user is present).

The poll should display results to voters once they've voted unless otherwise selected.