use sdk 2.4
clean up old test artifacts
write some comments for documenting purpose
upload file with new name because we can not update existing in CDN
add script to test cloud project role, scaffolding, emulators
add script
Merge branch 'dev' into SDK24
update installation script to install sdk 2.4
merge with dev branch
fix up line breaks
ignore tests which will fail when sdk is missing
using stub to ignore sdk missing error
clean up comment
Merge pull request #2748 from yugangw-msft/sdk24

Integrate SDK 24