Notifications manager added
AbstractLayoutManager.java class added to simplify layout coding
All custom layout managers refactored and now built upon AbstractLayoutManager.java (which implements Swing LayoutManager2)
MultiLayout.java added which can provide multiply layouts support to any container, its still up to you which layout wil handle each type of components
MultiLayout.java is set into each WebGlassPane.java at creation and glass pane supports multiply layouts at the same time now
Optimizations made to default listeners list sizes in all WebLaF components
Updates for v1.19 release