Check if python executable exists before querying user package direct…

…ory. (microsoft#6345)

Update admin-tool-ext-win README (microsoft#5911)

(cherry picked from commit b7956c5)

Adding CMS readme (microsoft#5417)

Turn off failing Insights tests

Bump ADS to 1.5.2

Update readme\changelog for March (microsoft#4575)

Alanren/fix4001 (microsoft#4011)

* fix for 4001

* Revert "fix for 4001"

This reverts commit 91fed44.

* fix for issue 4001

Fix notebook selection issues including from placeholder (microsoft#3836

)

Bump Azure Data Studio to 1.4.2

Moving onValidityChanged listener to showPage() so that it gets added…

… to pages that are added to the wizard after the initial start up (microsoft#3691)