* Add license headers

* reabased

* lint

* Removing licenses from vendors folder

* [table editor] allow selecting physical table

* Using classes for padding

* Fix: https://github.com/apache/incubator-superset/issues/6590, also depends on https://github.com/apache-superset/superset-ui/pull/71

* Bumped version of superset-ui-connector

* Added @babel/polyfill import

* Reset mock history before each test, not after each test

* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

* revert 848

* nit

* add fix for odbc+mssql

* fix for pylint/pep8

Not needed anymore in py3

Fix permission issue.

* Fix scheduled reports for mysql

* Really revert setup.py

* Fix after rebase

* Add NOTICE file and include initial third party licenses

* Add to manifest

* Use txt

* Fix notice

* #6588 Clear all other query tabs

* Improve SQLEditor methods bind

* Update loop syntax

* [README] use a numbered list instead of bullets for org list

* Add companies frmo https://stackshare.io/superset/in-stacks

* Improve Filter Box

* layout tweaks

* add kuaishou

* Bump requirements

* Fix setup.py for email reports

* WIP, fixing padding

* Remove testing code

The "altered" tag in the explore view shows up more often than it
should. By treating null, [] {}, undefined as identical will help reporting
only the differences that matter.

- Clean up css and html of the sql editor button area (removing unused styles)
- Restyle the button area and the resizer to be more like the one proposed in issue 6565

* resolved merge conflicts with upstream

* changed the key in a spot I missed

* linting

* refactored my code out into a function

* update util

* simplified the code logic

* cleaned up code

- redirect explore url with r parameter
- redirect to relative path

closes #6556

delete the 'null,' in messages.json,
so that word can be translate in js.

Refactored deprecated functionalities:
  - Used 'celery worker' command instead of 'superset worker' which is
    deprecated since 0.26.0
  - Used 'gunicorn' command instead of 'superset runserver'

* Finish move to babel 7

* Bump jest to 23.6.0

* Address comments

As I needed to downgrade from db migration 0b1f1ab473c0, I realized I
needed to use batch_op against SQLLite.

Changed margin for the slices description in dashboard view, previously the margin was 5px for all the sides but for improve the view just apply margin for top and bottom.