jsha/blocktogether — pull request #100 by BooDoo (2014-10-12 23:52:24+00:00)
Title: Trim Old Blocks (#59)

When a new BlockBatch is fetched in `updateBlocks`, trim BlockBatches in DB to only include 2 most recent for this BtUser.
Deleting BlockBatch items will clean up Blocks table automatically via cascade.