Email addresses get out-of-date, so make sure they're mapped
properly for future readers. git and linux-kernel already have
an established convention for this, so we will follow it.
(Not in any particular order)
+* mailmap support (same as git) for remapping expired email addresses
+
* Optional cookies in WWW interface for user-configurable colors
* WWW: Hybrid flat view + thread skeleton (requires Xapian)