- added comments to easy install to help do it manually
- README: some stuff moved to tips doc, brief summary of extras
(over gitosis) added
- INSTALL: major revamp, easy install and manual install,
much shorter and much more readable!
plus other docs changed as needed, and updated the tips doc to roll in
some details from "update.mkd" in the "ml" branch
- 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
