0.39:
- cleanup: use config_error more
- real mode color
- real mode action support a la trapd
- display eval number in -I evals

0.40:
- complete rule review
- multiple priority levels for categories

0.41
- -t: statistics

misc:
- multiple PGP recipients
- per-type support for lack of date_pattern being non-fatal
- configurable pattern space (ie. $pat{ip})
- $cidr_pat
- document what happens when optional extensions aren't defined
- document ability to use command-line options in config file, ie. days_ago
- document -d as just days_ago, not days_ago through present
- new config support for everything
- config_wipe: wipe the rules from the internal config, so you can write 
  your own config completely from scratch.  Subtelty: a lot of the config
  needs to be kept anyway, so we don't really want to completely wipe it.
- command line option to define preprocessor directives

Stuff to think about:
- some way for multiple-host output to meaningfully merge the output?
- HTML output -- useful?  What should it look like?
- sanitizing the output in case the logs contain control characters?
- cleanly handle logs that don't rollover -- how?
- make date_pattern optional?
- die isn't clear to non-perl dudes?
- capitalize things printed out?
- I18N?
- something like required_log_files that warns if the file doesn't exist.
- rename -p option for more generic "-e" (encrypt) option?
- merge commands_to_run into count?

