add a script to clean dangling svc

[xudifsd]

Put the script to src/ClusterBootstrap and call it. Remember to give this script a executable permission.

[coveralls]

Pull Request Test Coverage Report for Build 3709

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 92.221%

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Totals
Change from base Build 3696:	0.0%
Covered Lines:	968
Relevant Lines:	1038

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💛 - Coveralls