0.8.0

Improvements:

• The search has been completely re-written to use an in-memory data structure. Search speed and accuracy is a lot better than before.
  Initially, the project used PostgreSQL full text search. However, keeping the indexes updated took a significant toll on the system resources, and search speed was very slow.
  The new search improves accuracy by not relying on tokenizing the input, instead doing a substring match against the content itself.
• Hosts where the hostname is yet to be determined are now displayed with their ip address instead. (Previously, they were hidden from the results.)