もっとマニュアル見たほうがいい
http://www.symfony-project.com/askeet/22

To exclude files from rsync synchronizations,
open and edit the rsync_exclude.txt file under the askeet/config/ directory.
Each line can contain either a file, a directory, or a pattern:

.svn
web/frontend_dev.php
cache
log
stats
web/uploads

so easy!
francois