gladeui/glade-editor-table.c, gladeui/glade-editor-table.h,
	plugins/gtk+/glade-activatable-editor.c, plugins/gtk+/glade-button-editor.c,
	plugins/gtk+/glade-entry-editor.c, plugins/gtk+/glade-image-editor.c,
	plugins/gtk+/glade-image-item-editor.c, plugins/gtk+/glade-label-editor.c,
	plugins/gtk+/glade-label-editor.h, plugins/gtk+/glade-tool-button-editor.c:
	Removed the GtkTables and use GtkGrid in property editors so that line wrapping
	is hieght-for-width.