2004-04-06  Richard Hult  <richard@imendio.com>

	* libplanner/mrp-task-manager.c:
	* src/planner-gantt-chart.c:
	* src/planner-relation-arrow.c:
	* src/planner-task-dialog.c: (task_dialog_pred_cell_edited): Fix
	bug #129140, implement remaining task constraint types. Patch from
	Corey Schuhen.