Merge remote-tracking branch 'grafana/master' into stream-mixed-query

* grafana/master:
  Heatmap: Add Cividis and Turbo color schemes (grafana#18710)
  Units: add counts/sec (cps) and counts/min (cpm) in Throughput (grafana#18702)
  Dev Docker: Use golang:1.12.9-alpine to prevent glibc mismatch. (grafana#18701)
  Docs: Fix broken link for the Grafana on RHEL or Ubuntu tutorial (grafana#18697)
  Fixes several usability issues with QueryField component  (grafana#18681)
  convert teams section of user profile to react (grafana#18633)
  Singlestat/Gauge/BarGauge: Improvements to decimals logic and added test dashboard (grafana#18676)
  Emails: Change text (grafana#18683)
  Streaming: improve JSDocs for DataSourceAPI streaming support (grafana#18672)
  TimeSrv: Enable value time windowing in TimeSrv (grafana#18636)
  Explore: Fixes so Show context shows results again (grafana#18675)
  Graph: Updated y-axis ticks test dashboard (grafana#18677)
  Add typings to package.json in packages (grafana#18640)
  Plugins: better warning when plugins fail to load (grafana#18671)
  SingleStat2: save options to defaults not override (grafana#18666)
  Packages: Fix path import from grafana/data (grafana#18667)

Dockerfile

@@ -1,5 +1,7 @@
 # Golang build container
-FROM golang:1.12.9
+FROM golang:1.12.9-alpine
+
+RUN apk add --no-cache gcc g++
 
 WORKDIR $GOPATH/src/github.com/grafana/grafana