improved user sub classing
improved user sub classing

georgemarshall/DefinitelyTyped,laurentiustamate94/DefinitelyTyped,YousefED/DefinitelyTyped,zuzusik/DefinitelyTyped,borisyankov/DefinitelyTyped,QuatroCode/DefinitelyTyped,chrootsu/DefinitelyTyped,dsebastien/DefinitelyTyped,magny/DefinitelyTyped,AgentME/DefinitelyTyped,georgemarshall/DefinitelyTyped,jimthedev/DefinitelyTyped,abbasmhd/DefinitelyTyped,smrq/DefinitelyTyped,arusakov/DefinitelyTyped,magny/DefinitelyTyped,QuatroCode/DefinitelyTyped,zuzusik/DefinitelyTyped,AgentME/DefinitelyTyped,dsebastien/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,mcrawshaw/DefinitelyTyped,georgemarshall/DefinitelyTyped,YousefED/DefinitelyTyped,benishouga/DefinitelyTyped,jimthedev/DefinitelyTyped,alexdresko/DefinitelyTyped,aciccarello/DefinitelyTyped,chrootsu/DefinitelyTyped,nycdotnet/DefinitelyTyped,nycdotnet/DefinitelyTyped,abbasmhd/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,aciccarello/DefinitelyTyped,minodisk/DefinitelyTyped,AgentME/DefinitelyTyped,arusakov/DefinitelyTyped,rolandzwaga/DefinitelyTyped,johan-gorter/DefinitelyTyped,benliddicott/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,aciccarello/DefinitelyTyped,jimthedev/DefinitelyTyped,smrq/DefinitelyTyped,amir-arad/DefinitelyTyped,johan-gorter/DefinitelyTyped,arusakov/DefinitelyTyped,GiedriusGrabauskas/DefinitelyTyped,borisyankov/DefinitelyTyped,benishouga/DefinitelyTyped,mcliment/DefinitelyTyped,georgemarshall/DefinitelyTyped,isman-usoh/DefinitelyTyped,ashwinr/DefinitelyTyped,mcrawshaw/DefinitelyTyped,isman-usoh/DefinitelyTyped,zuzusik/DefinitelyTyped,markogresak/DefinitelyTyped,alexdresko/DefinitelyTyped,AbraaoAlves/DefinitelyTyped,rolandzwaga/DefinitelyTyped,benishouga/DefinitelyTyped,one-pieces/DefinitelyTyped,minodisk/DefinitelyTyped,AgentME/DefinitelyTyped,ashwinr/DefinitelyTyped