[FIX] More jslint warnings
[FIX] More jslint warnings

MicroWorldwide/PlayCanvas,guycalledfrank/engine,playcanvas/engine,MicroWorldwide/PlayCanvas,sereepap2029/playcanvas,H1Gdev/engine,playcanvas/engine,sereepap2029/playcanvas,aidinabedi/playcanvas-engine,guycalledfrank/engine,aidinabedi/playcanvas-engine,H1Gdev/engine,sereepap2029/playcanvas