basis.ui.slider: fix bug on mousewheel scroll
basis.ui.slider: fix bug on mousewheel scroll

istrel/basisjs,smelukov/basisjs,basisjs/basisjs,tyanas/basisjs,tyanas/basisjs,basisjs/basisjs,istrel/basisjs,smelukov/basisjs,fateevv/basisjs,basisjs/basisjs,fateevv/basisjs,smelukov/basisjs,tyanas/basisjs,istrel/basisjs,fateevv/basisjs