add torrent seeds and tracker for releases
This repo provides a /cfg/$sysname for a nightly iso builder. Code and generated files are stored in /usr/build. The following hierarchy is assumed: /usr/build/ code/ plan9front/ www/ 9front/ code/plan9front should be setup to be the plan9front repo. www/ is web root. To install: ; cd /cfg ; git/clone $url $sysname ; cd $sysname ; mk install