Point release for May release (microsoft#5846)

* Revert "Ensure using request: launch item in launch.json for debugging sends pathmappings (microsoft#5552)"

This reverts commit 1fad96f.

* Update change log

* Update version numbers

Updated version and change log (microsoft#5819)

Update release date

Bump version

Fixes to creation of json for Language Server (microsoft#5436)

For microsoft#5043

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- [x] Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR)
- [x] Title summarizes what is changing
- [n/a] Has a [news entry](https://github.com/Microsoft/vscode-python/tree/master/news) file (remember to thank yourself!)
- [n/a] Has sufficient logging.
- [n/a] Has telemetry for enhancements.
- [x] Unit tests & system/integration tests are added/updated
- [n/a] [Test plan](https://github.com/Microsoft/vscode-python/blob/master/.github/test_plan.md) is updated as appropriate
- [n/a] [`package-lock.json`](https://github.com/Microsoft/vscode-python/blob/master/package-lock.json) has been regenerated by running `npm install` (if dependencies have changed)
- [n/a] The wiki is updated with any design decisions/details.

 Ignore the extension's Python files when debugging. (microsoft#5103)

(for microsoft#3201)

March 2019 point release with debugger fixes (microsoft#5056)

* New point release
* Display survey banner for LS when using current LS
* Update version of PTVSD
* Telemetry
* Oops
* Linter issues
* Update CHANGELOG.md

Update change log

Release for march 2018 (microsoft#4931)

* New version
* Updated change log

Release 2019.2.2