For #95. You can now make posts with no text in the body if you have attachments. And now if you create a new topic with an attachment, and the POST fails (say you forgot the topic title), we will now re-attach attachments. Also fixed a bug in the smiley code that would arise if it was asked to markup an empty string.

SPAM_PHRASE_KEY = "antispam.spam_phrases"
BUSTED_MESSAGE = ("Your post has tripped our spam filter. Your account has "
        "been suspended pending a review of your post. If this was a mistake "
        "then we apologize; your account will be restored shortly.")