Merge branch 'master' into poc_token_auth

* master: (156 commits)
  Fixed issues with the sanitizie input in text panels, added docs, renamed config option
  build: removes arm32v6 docker image.
  Updated version in package.json to 6.0.0-pre1
  Update CHANGELOG.md
  build: armv6 docker image.
  build: skips building rpm for armv6.
  build: builds for armv6.
  Explore: mini styling fix for angular query editors
  Removed unused props & state in PromQueryField
  chore: Remove logging and use the updated config param
  chore: Reverse sanitize variable so it defaults to false
  feat: wip: Sanitize user input on text panel
  fix: Text panel should re-render when panel mode is changed #14922
  Minor rename of LogsProps and LogsState
  Splitted up LogLabels into LogLabelStats and LogLabel
  Refactored out LogRow to a separate file
  Removed strange edit
  Added link to side menu header and fixed styling
  Moved ValueMapping logic and tests to separate files
  Fixed data source selection in explore
  ...

pkg/api/frontendsettings.go

@@ -165,6 +165,8 @@ func (hs *HTTPServer) getFrontendSettingsMap(c *m.ReqContext) (map[string]interf
 		"externalUserMngInfo":        setting.ExternalUserMngInfo,
 		"externalUserMngLinkUrl":     setting.ExternalUserMngLinkUrl,
 		"externalUserMngLinkName":    setting.ExternalUserMngLinkName,
+		"viewersCanEdit":             setting.ViewersCanEdit,
+		"disableSanitizeHtml":        hs.Cfg.DisableSanitizeHtml,
 		"buildInfo": map[string]interface{}{
 			"version":       setting.BuildVersion,
 			"commit":        setting.BuildCommit,

pkg/api/index.go

@@ -140,7 +140,7 @@ func (hs *HTTPServer) setIndexViewData(c *m.ReqContext) (*dtos.IndexViewData, er
 		Children: dashboardChildNavs,
 	})
 
-	if setting.ExploreEnabled && (c.OrgRole == m.ROLE_ADMIN || c.OrgRole == m.ROLE_EDITOR) {
+	if setting.ExploreEnabled && (c.OrgRole == m.ROLE_ADMIN || c.OrgRole == m.ROLE_EDITOR || setting.ViewersCanEdit) {
 		data.NavTree = append(data.NavTree, &dtos.NavLink{
 			Text:     "Explore",
 			Id:       "explore",