Feature request: if the name of the feed already is in the database override it.
a remove function also would come in handy, as editing a textfile isn't convenient.

Also, for English translation I made this:

Line 146:       msg # Format: feed [+|-auto] [^limit] [%seconds] [#number] [@name] [=target] [~[$regex]|mask] [/replace/to] <URL> [Message format]

Line 147:      msg # Example: feed http://lenta.ru/rss - View latest 2 articles :: [+|-auto] On/Off. automatic updates. [^limit] maximum length. [%seconds] update interval. [#number] Number of items for show. [@name] name of feed. [=target] target (channel mask). [~[$regex]|mask] who will received messages from feed. [/replace/to] replace. <URL> address of the feed. [Message format] Message format for the feed. Any tags as: %title %author %description %link etc.

Line 156:     msg # Updating feed ( $+ $hget(feed.url,0).item $+ )...

Line 119/137: msg # Feed $+(,%request,) added to $+(,%target,)