Update _action-sheet.scss

see #310
Scrollbars auto fade out - #317
Merge pull request #316 from cxyokk/patch-1

Update _action-sheet.scss
remove white-space: nowrap from .scroll
Update README.md
z-index variables
Fixed #317
Bad console.log, Bad!
Fixed #264 and #286 - snapping scroll
Minification
list updates
Fixed reordering for #319
list updates