adjust auto rollup for CH 25.8 (int64 no longer is a string in json)#322

Hedius wants to merge 2 commits into

go-graphite:mastergo-graphite/graphite-clickhouse:masterfrom

Hedius:ch-25_8-remote-rollup-fixHedius/graphite-clickhouse:ch-25_8-remote-rollup-fixCopy head branch name to clipboard