Monocle: moved layouting to PagesLayoutManager.
Monocle: moved relayout scheduling to PagesLayoutManager.
Monocle: somewhat working thumbswidget.
Monocle: removed some debugging output.
Monocle: removed useless connection in layout manager.
Monocle: support margins for layout manager.
Monocle: support release handlers in PageGraphicsItem.
Monocle: ThumbsWidget::pageClicked() signal.
Monocle: handle thumbnail clicks.
Monocle: better checks for current page changes.
Monocle: keep thumbs widget current page in sync.
Monocle: bigger timeout for save state scheduling.