v0.13.4

Features:

• allow to store Date in UTC (PR #190)
• tagged search tune (allow to set cost for tags to be less prefered) (PR #179)
• add health status endpoint for monitoring by @MalKeshar (PR #185)
• allow to enable/disable filtering tagged-table by date by @lexx-bright (PR #187)
• find cache (PR #176)
• requests metrics (PR #194)
• multiply data timeouts/urls for render (for short/long range queries) (PR #181)

Bug fixes:

• fix step calculation on multitarget render query
• fix missing results on day start (on some tomezones due to inconsistence day filter with carbon-clickhouse) (PR #190)
• fix for panic on empty seriesByTag()

Security fixes:

• update github.com/gogo/protobuf from 1.0.0 to 1.3.2

Improvements:

• improve logging (log carbonapi uuid and custom request headers) (PR #175)
• configurable rollup update interval when rollup-conf set to "auto" by @lexx-bright (PR #186)