why should just usernames have all the fun :) The "expand_userlist" function
is now "expand_list" and serves generically. The example conf has also been
updated correspondingly
- logs go into $GL_ADMINDIR/logs by default, named by year-month
- logfile name template (including dir prefix) now in $GL_LOGT
- two new env vars passed down: GL_TS and GL_LOG (timestamp, logfilename)
- log messages timestamps more compact, fields tab-delimited
- old and new SHAs cut to 14 characters