Fixed the two nits and committed to branch. Thanks.
Seems like you should make the QuorumJournalManager#format and QuroumJournalManager#hasSomeData timeouts configurable, or at least use constants and add a comment or two justifying how you chose those values.
I added constants and set them both to 60sec. Also added a comment explaining that, since they are only used in format and not normal operation, we can use a fairly long timeout and don't really need to configure them (if a user sees a timeout they can manually investigate why it's taking 60+sec and do something about it)
I think I see the reasoning behind the need for the call to unlockAll in JNStorage#format, but you might want to add a comment explaining why it's necessary. Also, if this happens, when will the storage be locked again? Might want to add a comment explaining that as well.
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