add resize_widget_dimension()
resize widgets after initialization
fix min-width and min-height after resize

remove min-width and min-height after stopping resize
add resize_widget_dimension()
resize widgets after initialization

Conflicts:
	src/jquery.gridster.js
fix min-width and min-height after resize

remove min-width and min-height after stopping resize
Merge branch 'resize-widget-dimensions' of https://github.com/rebugger/gridster.js into resize-widget-dimensions

Conflicts:
	src/jquery.gridster.js
Merge branch 'resize_widget_dimensions'