Add a script to remove zero and null duplicate signup rows. Refs #6095
Add a script to remove zero and null duplicate signup rows.
Refs #6095

DoSomething/dosomething,mshmsh5000/dosomething-1,DoSomething/phoenix,DoSomething/phoenix,DoSomething/dosomething,sergii-tkachenko/phoenix,sbsmith86/dosomething,sergii-tkachenko/phoenix,sergii-tkachenko/phoenix,mshmsh5000/dosomething-1,DoSomething/dosomething,sbsmith86/dosomething,sergii-tkachenko/phoenix,mshmsh5000/dosomething-1,deadlybutter/phoenix,mshmsh5000/dosomething-1,DoSomething/phoenix,sbsmith86/dosomething,deadlybutter/phoenix,DoSomething/dosomething,deadlybutter/phoenix,mshmsh5000/dosomething-1,DoSomething/dosomething,sbsmith86/dosomething,DoSomething/phoenix,sergii-tkachenko/phoenix,DoSomething/phoenix,deadlybutter/phoenix,sbsmith86/dosomething,deadlybutter/phoenix,sbsmith86/dosomething,DoSomething/dosomething