Merge branch 'master' into MySQL/MariaDB

Merge branch 'master' into MySQL/MariaDB

Update PTVSD from 2.20 to 4.3.2 (microsoft#240)

* updated ptvsd

* Fixed flake8 errors

Update psycopg to version 2.7.5 (microsoft#237)

* Update to 2.7.5

* Fixing flake error

* Replace is with ==

do not convert json returned by the server (microsoft#235)

do not convert json returned by the server (microsoft#235)

Handling null for tsrange and numrange queries (microsoft#231)

* Changes to build pgtoolsservice

* Update converters to handle null

* Revert "Changes to build pgtoolsservice"

This reverts commit 8abf970.

Add ability for service to accept azureAccountToken from ADS client (m…

…icrosoft#221)

* Code changes for AAD

* Fix check for key present in dict

* Add unit test to make sure account token is passed as PostgreSQL password.

* Remove extra import added by mistake.

* Fix static analysis errors

Add ability for service to accept azureAccountToken from ADS client (m…

…icrosoft#221)

* Code changes for AAD

* Fix check for key present in dict

* Add unit test to make sure account token is passed as PostgreSQL password.

* Remove extra import added by mistake.

* Fix static analysis errors

Fix for No file corresponding to the given URI (microsoft#219)

* unquoting the file uri before its is used as a key for the opened files

* Updated missing changes to handle pop and get and search