clean up WellPrng and fix some bugs
clean up WellPrng and fix some bugs

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