• Big change: Add robot version detection, distinct from browser
  version (first cut) (andrewmoise)
  
• Add browsers: Pubsub (Safari RSS reader), ADM (Android Download
  Manager), ImageSearcherPro (iOS app) (andrewmoise)
  
• Add robots: Google favicon, malware/shellcode, phplib,
  Verisign IPS agent, Nutch, thumbtack-thunderdome (andrewmoise)
  
• Distinguish Bingbot from MSNbot (andrewmoise)
  
• Only detect wget based on the beginning of the user-agent
  (andrewmoise)
  
• Misc fixes to test support scripts (andrewmoise)
  
• Add Kindle Fire (andrewmoise)
  
• Detect curl by matching /^curl/ as well as /libcurl/
  (andrewmoise)
  
• Remove webcrawler robot test (it triggers on too many distinct
  robots which all include "webcrawler") (andrewmoise)