Proposed change to lyricless notification

Noticed the missing lyrics system required user intervention in order to
generate an email to RT, this change would initiate the email
automatically upon a user visiting a song page that was lacking
lyrics. With the new widget system in place, this should rarely happen, anyway.

Code changes lyrics so notification would only ever be issued once, by
inserting an invisible HTML entity into the lyrics.

Should we also initiate a reddit message to the bandit specified as
"lyricist"?