[boost] Tribool library updated

From: Douglas Gregor (gregod_at_[hidden])
Date: 2003-10-26 20:15:22

I've updated the tribool library based on some suggestions from Pavel 
Vozenilek. The new version is here (only):

http://f3.grp.yahoofs.com/v1/EG6cP6oDerA5-2JjLtSbWwpljyf8ejFJUz22aZ32AiMQkCkhEx5wTBLDCXT-AE_SzVW1nHQ5oDWtby_ONzwolPkom-uw/tribool-20031026.tgz

Only two important changes:
  - moved tribool into boost::logic namespace
  - added tribool I/O operators

        Doug