0.11.2

Fixed

• the cache never freed disk. Expiring an entry removed the key but not the data behind
  it, which the underlying store only reclaims when it rewrites its value log files, and
  nothing did. Found on a cache holding 66 live entries totalling 84 MB across 16 GB of
  files, the oldest thirteen months old. Closing the cache now rewrites a little on every
  run, so a healthy cache stops growing
• ipscout cache gc reclaims the rest in one go for a cache that has already grown, and
  reports what it freed. On the cache above it went from 15.9 GB to 1.1 GB