haha log files

I replaced the space in the default logfilename with an underscore.

-logfile lets you change the log filename. You can use strftime format specifiers too! -logdir lets you change the log directory.

Both of these parameters permit absolute paths. Missing directories are created.

latest-log.txt is ...the latest log file. On Wind'ohs this file gets created FIRST, then copied to the normal log file. On *nix, it's a symlink to the normal log file.

Oh, and the Logfile: lol print now prints the full path. I think that's more convenient too.