add one new script and one fucntion about delete.
Finished REQ12626.
Merge branch 'master' of github.com:YouwenYao/Alex

Conflicts:
	NformTester/NformTester/NformTester.rxtst
	NformTester/NformTester/app.config
Integrate Alex and Sashimi latest code
Finished REQ12627.
Finished REQ12624.
Merge REQ12627 AND REQ12624.
Finished REQ12618.
Finished REQ12623.
Merge REQ12623.
Solve the conflict.