Infographic for Gerrit review

Based on gerrit JSON queries that were saved to file (couldn't get on fly because server doesn't support CORS).
Queries could be found in .json files.
Query for Merged review is not full and limited by server, could get data only from Apr 2013

Text will apear under mouse, circles are clickable. Bigger circle - bigger time.

Domain no problems - open reviews without negative marks and passed build/testing.