change done to add the update task service and relevant UI changes for that
Modified TaskService.cshtml to add remove / update and add Task methods.
Modified Servces.cs to accomodate updateTask / removeTask methods
Modified Styles.css for a new pane in the DailyPlan.cshtml
Modified DailyPlan.cshtml for EditTask pane, update / remove and add Task
as well as hide the Reason and Leverage column from dailyview