Code Cleanup

- Consistent scheme for printing project change information: always
  shows the progress estimation and add a notification that the project
  has changed if the number of tasks is changed.

src/commands/CmdDelete.cpp

@@ -103,7 +103,7 @@ int CmdDelete::execute (std::string& output)
         feedback_unblocked (*task);
         dependencyChainOnComplete (*task);
         if (context.verbose ("project"))
-          projectChanges[task->get ("project")] = onProjectChange (*task, true);
+          projectChanges[task->get ("project")] = onProjectChange (*task);
 
         // Delete siblings.
         if (task->has ("parent"))