Moved `decorateWithEmojiOpts` method to tributedemander.
Fixed missing module from tributedemander.
Updated phrasing around "usable nouns."
Started exhortationserver.
Renamed `exhortationForTweet` to `getExhortationForTweet`.
Removed old exhort.js.
Updated exhortationserver to tweet and to record that what it has tweeted about.
Updated getExhortationForTweet to pass back the topics used.
Fixed indentation.
Updated replyDateWasNotTooRecent in exhorter to convert date strings to dates before doing calculations.