And so on: #558, #547, #542, #537, #532, #516, #500, #489, #489, #447, #475, #459, ##422, #411, #356

added forcePolyfill option.
forcePolyfill is made to make cross-browser testing more easy.
forcePolyfill provides a reliable, consistent cross-browser Solution for
Sortable.
forcePolyfill gives us the possibility to change the way "dragged items"
lok like.

Fix #148