Updated Rips zigzags
* Updated to use Bron-Kerbosch
* Compute in the order of increasing epsilon, and decreasing point sizes
* Split into plain zigzag (rips-zigzag) and image zigzag (rips-image-zigzag)
* Added minor enhancements (show_progress and timers)
From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Wed, 27 Feb 2008 16:30:57 -0500
State: fixed
Subject: Segfault with topology/vineyard log enabled
Message-Id: <d2ab07329c3588ca-0-artemis@metatron>
The code segfaults in Vineyard::record_knee() if we subscribe to
topology/vineyard log.