Merge pull request #3 from RBeaudoin/master

Bug fix for stats not getting trimmed in the DB for Crowsnest
0.2.2
0.2.3
Improved stats history trimming, removed debounce

The debounce trimming function was causing it to spawn many functions running over top of each other causing CPU to spike. This change is still fairly CPU intensive, but we need to change the strategy for how stats are stored in LevelDb. Scanning all of the keys for every trim is slow.
0.2.4