0.14.2

• [Feature] Separate backend protocol for VictoriaMetrics. Based on prometheus protocol (and share some of it's code), but uses some of VM-specific features to improve performance for /metrics/find queries (Related to #521)
• [Feature] timeShift function supports resetEnd parameter (thx to @faceair). Current default is set to false to match carbonapi behavior, however in 0.15.0 it will be changed to true.
• [Feature] Resepct pixelRatio parameter from referer if not specified in request. (thx to @lomik)
• [Fix] Handling of maxBatchSize (maxGlobs) in config file. Respect overrides on backend level.
• [Fix] Warnings about duplicate functions when carbonapi starts.
• [Fix] Resulting tags in groupByTags are now correct (thx to @Felixoid)
• [Fix] Fix handling of requests that fetches data with different start/end times (thx to @Felixoid). Related to #526
• [Fix] Fix the way how pow function works with NaN in values (thx to @zhelyabuzhsky)
• [Fix] CSV format now produce dates in UTC (like in graphite-web) (thx to @jonasbleyl)
• [Fix] Fix from/util timestamp aligning in all moving* functions (thx to @Felixoid)