Log Message:
Update to 0.92.4.  Changes:
* Remove 'g', 'r', and 'f' from bogofilter's OPTIONS list as
  there's only one scoring algorithm.
* Fixed db_init/db_cleanup problems encountered with multiple
  wordlists and concurrent data stores.
* Bugfix:  '%I' is now really the Message-ID,
* Feature: '%Q' is now the queue ID
* Use an explicit inputs/outputs directory list to avoid shipping test
  files in those directories.
* Miscellaneous cleanups, removed 'degen' code remainders.
* Formatting character changes:
  '%A' is now the message's IP address.
  '%I' is now the message's ID.
* Remove initialize() function in bogoconfig.c and use
  lexer_init() in lexer.c, which provides same functionality.
* Warn on invalid options, rather than exit.