Reverting a change from r1732 for reasons stated in soc/logic/models/group.py.
Patch by: Lennard de Rijk
Reviewed by: to-be-reviewed
# Directions for web crawlers.
# See http://www.robotstxt.org/wc/norobots.html.
User-agent: HTTrack
User-agent: puf
User-agent: MSIECrawler
User-agent: Nutch
Disallow: /