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commit 0e5c7c46354f4b6e9f6bd9b47de51432735a5e98
Merge: 27a388e 5bd1c04
Author: Michael Richardson <mcr@sandelman.ca>
Date:   Mon Oct 26 11:17:11 2015 -0400

    Merge pull request #15 from bradjc/fix-queue

    Update main loop to new queue API

commit 5bd1c04d0c6ff97dd1c40c3ecc5a745649225198
Author: Brad Campbell <bradjc5@gmail.com>
Date:   Mon Oct 26 01:56:39 2015 -0400

    update main loop to new queue API

    Calling `peek_event()` when the `things_to_do` queue is empty
    trips a Boost assertion. This update checks to make sure there is
    something in the queue before calling `peek_event()`.

    Also, `eat_event()` calls `pop()` on the queue, which removes the item
    from the queue. However, it doesn't update the internal state of the
    item, in particular it doesn't un-mark the item as in a queue. Later on,
    this causes the `reenqueue()` function to not re-add the item to the
    queue, causing the event to never get triggered again. To fix this, we
    update the state of the event after calling `eat_event()`.

commit 27a388e7ba662c45feab7b357d0e5a8ac603a020
Author: Michael Richardson <mcr@sandelman.ca>
Date:   Mon Oct 19 16:45:34 2015 -0400