Merge pull request #78 from vimeo/hotcache_ttl_apply

hotcache: cap expiry _before_ insertion

Merge pull request #78 from vimeo/hotcache_ttl_apply

hotcache: cap expiry _before_ insertion

Merge pull request #76 from vimeo/galaxy_ttl_config

auto-ttl: Add galaxy-level TTL config

Merge pull request #72 from vimeo/peek_metrics_fixes

Fix peek metrics and reword doc-comment

Merge pull request #71 from vimeo/peer_peek_cfg_dialsdesc_tags

PeekPeerCfg: add dialsdesc tags & Verify method

chtest: fix segments_per_key calculation

When writing the initial version of this package, I did a back of the
envelope calculation, and forgot to draw myself a full diagram for the
n=2 and n=3 cases, meaning that I didn't actually _count_ how many
entries I needed with the layout I had. Writing it down and counting
showed that I was off by a factor of 2. (which also jives with the sizes
of the internal maps/slices this package creates (which are
unfortunately only visible in a debugger because they're only propagated
by the hash-function closure's capture)

Merge pull request #62 from vimeo/chtest_key_prereg_build_tag

chtest: key pregistration & non-test build tag

Merge pull request #58 from vimeo/consistenthash_ownership_filter_object

consistenthash: fix owner-collision handling and introduce a way to bulk-check ownership of a specific peer

Merge pull request #56 from vimeo/bytes_metrics_small_buckets

opencensus views: add small-byte buckets

Merge pull request #55 from vimeo/k8swatch_galaxycache_v1.1.1

k8swatch: update galaxycache dep