Finished refactoring of isSuperset.
Finished refactoring of isSuperset.

guersam/spire,tixxit/spire,JackSullivan/spire,non/spire,adampingel/spire,kevinmeredith/spire,adampingel/spire,non/spire,siddhartha-gadgil/spire,woparry/spire,JackSullivan/spire,AlecZorab/spire,guersam/spire,codeaudit/spire,rklaehn/spire,codeaudit/spire,siddhartha-gadgil/spire,kevinmeredith/spire,tixxit/spire,rklaehn/spire,AlecZorab/spire,woparry/spire