style(TestScheduler): rename SetupableTestSubject
style(TestScheduler): rename SetupableTestSubject

Rename SetupableTestSubject to SetupableHotObservable in TestScheduler.

mattpodwysocki/RxJS,mattpodwysocki/RxJS,justinwoo/RxJS,jayphelps/rxjs,justinwoo/RxJS,jayphelps/rxjs,ReactiveX/RxJS,gluck/RxJS,jayphelps/rxjs,ReactiveX/RxJS,robwormald/RxJS,figueredo/RxJS,luisgabriel/RxJS,luisgabriel/RxJS,trxcllnt/RxJS,RxJS-CN/RxJS-Docs-CN,kwonoj/RxJS,SangKa/RxJS-Docs-CN,SangKa/RxJS-Docs-CN,kwonoj/RxJS,Brocco/RxJS,saneyuki/RxJS,staltz/RxJSNext,martinsik/rxjs,SangKa/RxJS-Docs-CN,IgorMinar/RxJS,Igorbek/rxjs5,adrianomelo/RxJS-1,ReactiveX/rxjs,jayphelps/rxjs,jinroh/RxJS,jinroh/RxJS,jinroh/RxJS,ReactiveX/rxjs,Brocco/RxJS,IgorMinar/RxJS,gluck/RxJS,benlesh/RxJS,robwormald/RxJS,RxJS-CN/RxJS-Docs-CN,ReactiveX/rxjs,Igorbek/rxjs5,jinroh/RxJS,RxJS-CN/RxJS-Docs-CN,jadbox/RxJS,jadbox/RxJS,jadbox/RxJS,kwonoj/RxJS,ReactiveX/RxJS,adrianomelo/RxJSNext,staltz/RxJSNext,martinsik/rxjs,kwonoj/RxJS,elliotschi/rxjs,luisgabriel/RxJS,elliotschi/rxjs,figueredo/RxJS,robwormald/RxJS,Brocco/RxJS,benlesh/RxJS,martinsik/rxjs,ReactiveX/rxjs,gluck/RxJS,mattpodwysocki/RxJS,adrianomelo/RxJS-1,Igorbek/rxjs5,jayphelps/rxjs,adrianomelo/RxJSNext,benlesh/RxJS,adrianomelo/RxJS-1,justinwoo/RxJS,jadbox/RxJS,gluck/RxJS,elliotschi/rxjs,elliotschi/rxjs,RxJS-CN/RxJS-Docs-CN,benlesh/RxJS,adrianomelo/RxJS-1,robwormald/RxJS,adrianomelo/RxJSNext,trxcllnt/RxJS,mattpodwysocki/RxJS,SangKa/RxJS-Docs-CN,figueredo/RxJS,Brocco/RxJS,ReactiveX/RxJS,staltz/RxJSNext,staltz/RxJSNext,adrianomelo/RxJSNext,figueredo/RxJS,luisgabriel/RxJS,Igorbek/rxjs5,saneyuki/RxJS,justinwoo/RxJS,martinsik/rxjs,trxcllnt/RxJS,trxcllnt/RxJS