Add goconst to CircleCI

Fix goconst issues

imguploader: Add support for ECS credential provider for S3

filter NULL values in column value suggestion query

alerting: move all notification conditions to defaultShouldNotify

Remove .dropdown-menu-open on body click fixes #13409

provisioning: changed update interval default 3 to 10 seconds

Concurrent render limits

Remove option r from ln command since its not working everywhere

13312 legend table width

Fix spelling of your and you're

fix: Legend to the right, as table, should follow the width prop. Removing css conflicting with baron's width calculation. #13312

devenv: adds script for creating many dashboards with alerts

Explore: label selector for logging

See,
$ gometalinter --vendor --disable-all --enable=goconst --disable=gotype --deadline=6m ./...
build.go:113:15:warning: 2 other occurrence(s) of "linux" found in: build.go:119:15 build.go:491:34 (goconst)
build.go:119:15:warning: 2 other occurrence(s) of "linux" found in: build.go:113:15 build.go:491:34 (goconst)
build.go:491:34:warning: 2 other occurrence(s) of "linux" found in: build.go:113:15 build.go:119:15 (goconst)
build.go:381:21:warning: 2 other occurrence(s) of "windows" found in: build.go:423:13 build.go:487:13 (goconst)
build.go:423:13:warning: 2 other occurrence(s) of "windows" found in: build.go:381:21 build.go:487:13 (goconst)
build.go:487:13:warning: 2 other occurrence(s) of "windows" found in: build.go:381:21 build.go:423:13 (goconst)
pkg/api/dashboard.go:67:22:warning: 5 other occurrence(s) of "Anonymous" found in: pkg/api/dashboard.go:67:35 pkg/api/dashboard.go:131:10 pkg/api/dashboard.go:406:13 pkg/api/folder.go:98:22 pkg/api/folder.go:98:35 (goconst)
pkg/api/dashboard.go:67:35:warning: 5 other occurrence(s) of "Anonymous" found in: pkg/api/dashboard.go:67:22 pkg/api/dashboard.go:131:10 pkg/api/dashboard.go:406:13 pkg/api/folder.go:98:22 pkg/api/folder.go:98:35 (goconst)
pkg/api/dashboard.go:131:10:warning: 5 other occurrence(s) of "Anonymous" found in: pkg/api/dashboard.go:67:22 pkg/api/dashboard.go:67:35 pkg/api/dashboard.go:406:13 pkg/api/folder.go:98:22 pkg/api/folder.go:98:35 (goconst)
pkg/api/dashboard.go:406:13:warning: 5 other occurrence(s) of "Anonymous" found in: pkg/api/dashboard.go:67:22 pkg/api/dashboard.go:67:35 pkg/api/dashboard.go:131:10 pkg/api/folder.go:98:22 pkg/api/folder.go:98:35 (goconst)
pkg/api/folder.go:98:22:warning: 5 other occurrence(s) of "Anonymous" found in: pkg/api/dashboard.go:67:22 pkg/api/dashboard.go:67:35 pkg/api/dashboard.go:131:10 pkg/api/dashboard.go:406:13 pkg/api/folder.go:98:35 (goconst)
pkg/api/folder.go:98:35:warning: 5 other occurrence(s) of "Anonymous" found in: pkg/api/dashboard.go:67:22 pkg/api/dashboard.go:67:35 pkg/api/dashboard.go:131:10 pkg/api/dashboard.go:406:13 pkg/api/folder.go:98:22 (goconst)
pkg/api/index.go:63:47:warning: 2 other occurrence(s) of "light" found
in: pkg/api/index.go:91:22 pkg/api/index.go:93:16 (goconst)
pkg/api/index.go:91:22:warning: 2 other occurrence(s) of "light" found in: pkg/api/index.go:63:47 pkg/api/index.go:93:16 (goconst)
pkg/api/index.go:93:16:warning: 2 other occurrence(s) of "light" found in: pkg/api/index.go:63:47 pkg/api/index.go:91:22 (goconst)
pkg/components/null/float.go:71:25:warning: 2 other occurrence(s) of "null" found in: pkg/components/null/float.go:103:10 pkg/components/null/float.go:112:10 (goconst)
pkg/components/null/float.go:103:10:warning: 2 other occurrence(s) of "null" found in: pkg/components/null/float.go:71:25 pkg/components/null/float.go:112:10 (goconst)
pkg/components/null/float.go:112:10:warning: 2 other occurrence(s) of "null" found in: pkg/components/null/float.go:71:25 pkg/components/null/float.go:103:10 (goconst)
pkg/services/alerting/notifiers/pagerduty.go:79:16:warning: 2 other occurrence(s) of "Triggered metrics:\n\n" found in: pkg/services/alerting/notifiers/kafka.go:64:16 pkg/services/alerting/notifiers/opsgenie.go:98:16 (goconst)
pkg/services/alerting/notifiers/kafka.go:64:16:warning: 2 other occurrence(s) of "Triggered metrics:\n\n" found in: pkg/services/alerting/notifiers/pagerduty.go:79:16 pkg/services/alerting/notifiers/opsgenie.go:98:16 (goconst)
pkg/services/alerting/notifiers/opsgenie.go:98:16:warning: 2 other occurrence(s) of "Triggered metrics:\n\n" found in: pkg/services/alerting/notifiers/pagerduty.go:79:16 pkg/services/alerting/notifiers/kafka.go:64:16 (goconst)
pkg/social/social.go:85:11:warning: 2 other occurrence(s) of "grafana_com" found in: pkg/social/social.go:162:14 pkg/social/social.go:197:11 (goconst)
pkg/social/social.go:162:14:warning: 2 other occurrence(s) of "grafana_com" found in: pkg/social/social.go:85:11 pkg/social/social.go:197:11 (goconst)
pkg/social/social.go:197:11:warning: 2 other occurrence(s) of "grafana_com" found in: pkg/social/social.go:85:11 pkg/social/social.go:162:14 (goconst)
pkg/tsdb/elasticsearch/time_series_query.go:92:17:warning: 3 other occurrence(s) of "count" found in: pkg/tsdb/elasticsearch/response_parser.go:152:8 pkg/tsdb/elasticsearch/response_parser.go:167:31 pkg/tsdb/elasticsearch/response_parser.go:315:9 (goconst)
pkg/tsdb/elasticsearch/response_parser.go:152:8:warning: 3 other occurrence(s) of "count" found in: pkg/tsdb/elasticsearch/time_series_query.go:92:17 pkg/tsdb/elasticsearch/response_parser.go:167:31 pkg/tsdb/elasticsearch/response_parser.go:315:9 (goconst)
pkg/tsdb/elasticsearch/response_parser.go:167:31:warning: 3 other occurrence(s) of "count" found in: pkg/tsdb/elasticsearch/time_series_query.go:92:17 pkg/tsdb/elasticsearch/response_parser.go:152:8 pkg/tsdb/elasticsearch/response_parser.go:315:9 (goconst)
pkg/tsdb/elasticsearch/response_parser.go:315:9:warning: 3 other occurrence(s) of "count" found in: pkg/tsdb/elasticsearch/time_series_query.go:92:17 pkg/tsdb/elasticsearch/response_parser.go:152:8 pkg/tsdb/elasticsearch/response_parser.go:167:31 (goconst)
pkg/tsdb/elasticsearch/time_series_query.go:78:9:warning: 2 other occurrence(s) of "date_histogram" found in: pkg/tsdb/elasticsearch/response_parser.go:84:22 pkg/tsdb/elasticsearch/response_parser.go:369:24 (goconst)
pkg/tsdb/elasticsearch/response_parser.go:84:22:warning: 2 other occurrence(s) of "date_histogram" found in: pkg/tsdb/elasticsearch/time_series_query.go:78:9 pkg/tsdb/elasticsearch/response_parser.go:369:24 (goconst)
pkg/tsdb/elasticsearch/response_parser.go:369:24:warning: 2 other occurrence(s) of "date_histogram" found in: pkg/tsdb/elasticsearch/time_series_query.go:78:9 pkg/tsdb/elasticsearch/response_parser.go:84:22 (goconst)

Fix #13356, where tooltips do not display individual values on stacked graphs

render proper values for individual points

Fix metric-segment options displaying after blur

options displays after blur

Update Configuration.md

added span with folder title that is shown for recently and starred

Fix misspell issues