Support for local Docker builds

* Add baron scroller to grafana panel, not plugin panel

* remove comment about root <div> element, since it will not be true

* enable url() processing in CSS to ensure assets load in HMR mode
* only needed when running `yarn start` which needs this for the hot
reloader

Server shutdown flow rewrite & provision service refactor

Explore: Add entry to panel menu to jump to Explore

* fix root_url in docs & comments

* include ports in docker-compose config

add notes about closing #11743 and add release data for 5.1.1
[skip ci]

* add a git-ignored `local/` folder for Makefile/Dockerfile
* import `local/Makefile` to root Makefile
* add `.dockerignore`

* fix: initial cleanup and implementation

* feat: finish special character escaping

* feat: updates fileExport to generate RFC-4180 compliant CSV

* chore: replace html decoder with the lodash version and final cleanup

* fix: restore character html decoding

Add missing items to Gopkg.lock

Fix variable interpolation examples in whats new in 5.1 docs

[skip ci]

fix dark/light theme date selector styling in timepicker control

[skip ci]

dont shadow format passed in as function parameter in replace function in templatesrv

format is specified

[skip ci]

fix to match table column name and order

increase length of auth_id column in user_auth table

scroll: fix scrolling on mobile Chrome