chore(eslint): pin eslint to a version that works properly for our spec files
chore(eslint): pin eslint to a version that works properly for our spec files

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