Merge pull request CommunityToolkit#2860 from southworkscom/fix/versi…

…onComInAppNotification

Fix compatibility of InAppNotification with build 17134

Merge pull request CommunityToolkit#2803 from windows-toolkit/mhawker…

…/sample51update

Update Sample App in prep for 5.1 release

updated nuget release notes

releasing 4.0.1

bump version number to resolve nuget.org issue

added packages.config for cake builds

updated version to 2.1.1

Merge pull request CommunityToolkit#1636 from Microsoft/nmetulev/expa…

…nder

Expander: remove DisplayMode and replace animations with composition animations

Merge pull request CommunityToolkit#1450 from Microsoft/staging

Merging into master for 2.0

Merge pull request CommunityToolkit#1323 from Microsoft/dev

1.5.1