Shard awareness extension for Scylla patchset 1#1210

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mmatczuk wants to merge 3 commits intoapache:trunkfrom scylladb:mmt/scylla_shard_aware_patch_1

+190-94

Commits on Oct 18, 2018

conn: introduced supported field containing payload of SUPPORTED frame

mmatczuk
and
Henrik Johansson
committed
SelectedHost: added Token function

mmatczuk
and
Henrik Johansson
committed
hostConnPool: introduced ConnPicker interface to abstract pool storage

mmatczuk
and
Henrik Johansson
committed