add resources
add empty actions "Task New", "Task Del"
MainWindow title and icon
add MainWindow::cycle_ to track the current cycle
newTaskClicked() impl
setting duration triggers scheduling
Cycle is QObject and can signal scheduling and task insertion
Cycle signals scheduling
subtask accessibility directly from Task
Cycle signals task insertion
TaskTreeModel::resolvTask
TaskTreeModel::indexForTask
TaskTreeModel get notified of scheduling and notify tree view
TaskTreeModel gets notified of task insertion and notifies tree view
removed warning
task insert and task append resources
TaskNew ==> TaskAppend + created and connected actions for task insert and indent