fix for 'SELECT' element in slide
refactor, update api, fix for IE 8

refactor code, update api, add $ScaleHeight method.

fix for IE 8

optimize for latest pointer events standard
Merge remote-tracking branch 'origin/master'

Conflicts:
	js/jssor.slider.js
	js/jssor.slider.min.js
	js/jssor.slider.mini.js
	js/jssor.sliderc.mini.js
	js/jssor.sliders.mini.js