A pure Java clone of Basho's BitCask.

todo
✔1. Configurable fsync behavior, async notification of sync with latency and compression results
✔2. Write hint files as you go (saw this reviewing BitCask commits)
3. Add utilization/fragmentation stats for each cask, regenerate stats on reload
4. Compaction triggered by stats
5. Multi-threaded hint file reloading
6. Off heap zero fragmentation key storage with responsive RSS
7. Network interface
8. Naive async replication. Recovery is always a full sync. Manual slave promotion. Slave is readable only until promotion
9. Stored procedures, in a language where not everything is a floating point number (j/k)