* origin/master: (21 commits)
docs: removes notes about beeing introduced in 5.0
lock caniuse-db version to resolve phantomjs rendering issue
Update dashboard_permissions.md
move database-specific code into dialects (#11884)
refactor: tracing service refactoring (#11907)
fix typo in getLdapAttrN (#11898)
docs: update installation instructions targeting v5.1.2 stable
changelog: add notes about closing #11862, #11656
Fix dependencies on Node v10
Update dashboard.md
changelog: add notes about closing #10338
Phantom render.js is incorrectly retrieving number of active panels (#11100)
singlestat: render time of last point based on dashboard timezone (#11425)
Fix for #10078: symbol "&" is not escaped (#10137)
Add alpha color channel support for graph bars (#10956)
interpolate 'field' again in Elasticsearch terms queries (#10026)
Templating : return __empty__ value when all value return nothing to prevent elasticsearch syntaxe error (#9701)
http_server: All files in public/build have now a huge max-age (#11536)
fix: ldap unit test
decrease length of auth_id column in user_auth table
...
* moved babel rules for hot reloading into TS loader
* toggling use of babel via HOT variable (true with `yarn start`)
* overriding webpack output when HOT to fix asset paths in dashboard
urls like http://localhost:3333/d/...
For some reason a newer version of this sub-dependency makes phantomjs
rendering unable to generate and save a png image, however without
any error message logged
* Set fillColor in bars on load and on color change
* Change bar fill color on color override
* Added test for series overrides
* Moved bars fill color setting into time_series. Fixed issue with prev commit where you could not show bars because of series overrides.
* interpolate 'field' again in Elasticsearch terms queries
Fix for #8662 which was regressed in commit e4950c2dc1 (the field 'field' was no longer interpolated)
* remove unnecessary check for existence of field 'field'
* ldap: case-insensitive LDAP group comparison
According to RFC2251 4.1.5, LDAP strings are case-insensitive. Disregard case when comparing group mappings.
* ldap: add test for case-insensitive group mapping
