Chore: Implement revive (#16200)

Since we do not like some of the default golint rules,
this commit proposes to use https://github.com/mgechev/revive.

And potential revive speed-up should't hurt :).

Right now, presented config (./conf/revive.toml) is permissive,
we might improve it over time however. Fixes for found revive
issues in the code are very limited so it wouldn't be large to review.

Also in this commit:

* Add annotations for makefile commands and declare phony targets

* Rename "gometalinter" script and CI command to "lint"
  since we are doing there a bit more then using gometalinter package

* Add Makefile rules to .editorconfig

* Documentation which mentioned "golint" replaced with revive

Fixes #16109
Ref #16160

packaging/conf/nfpm.yaml

@@ -0,0 +1,36 @@
+name: "grafana"
+arch: "${ARCH}"
+platform: "linux"
+version: "${VERSION}"
+section: "default"
+priority: "extra"
+replaces:
+- grafana
+provides:
+- grafana-server
+- grafana-cli
+depends:
+- adduser
+- libfontconfig
+maintainer: "<contact@grafana.com>"
+description: |
+  Grafana
+vendor: "Grafana"
+homepage: "https://grafana.com"
+license: "Apache 2"
+bindir: "/usr/sbin"
+files:
+  "./bin/grafana-server": "/usr/sbin/grafana-server"
+  "./bin/grafana-cli": "/usr/sbin/grafana-cli"
+config_files:
+  ./packaging/deb/init.d/grafana-server: "/etc/init.d/grafana-server"
+  ./packaging/deb/default/grafana-server: "/etc/default/grafana-server"
+  ./packaging/deb/systemd/grafana-server.service: "/usr/lib/systemd/system/grafana-server.service"
+overrides:
+  rpm:
+    scripts:
+      preinstall: ./scripts/preinstall.sh
+      postremove: ./scripts/postremove.sh
+  deb:
+    scripts:
+      postinstall: ./packaging/deb/control/postinst