Add a mimimum TTL to the robots cache, to work around sites with a TTL of 0, which is a REALLY BAD THING to have.
Add a mimimum TTL to the robots cache, to work around sites with a TTL of 0, which is a REALLY BAD THING to have.

pombredanne/reppy,pombredanne/reppy,seomoz/reppy,seomoz/reppy