Added an alert for new props

 - Also, renamed and re-ordered release history
Undo inner join
Fixed a join bug
New DBVerify for our join counts
Default recent churn time window is 30 days
Better indexing!

And dropping tables we don't need
Association analysis code
Speed improvements on PEACH & RecentNAA
Merge branch 'master' into SummaryStats
Fixed the computation of VCCs that contributed to multiple vulnerabilities