destroy resize
Additional support for fluid grids (especially when combined with drag/resize)

-  Calculate widget size on browser resize
-  Stop clobbering calculated grid width when drag/drop is enabled
-  Add option to clear serialized widget changes after retrieval
Update dist files
fix spacing
Clean up events

-  Don't fire widget changed events unless the size/position actually changed
-  Throttle grid height recalc
-  Remove unnecessary calculations when updating widget dimensions
update dist files