AboutDialog: fixed components' flush at border
NewCollectionDialog: fixed components' flush at border
PreferencesDialog: fixed components' flush at border, validates directory before setting it up
PreferencesDialog: fixed small errors
DiagramView: removed unused import
SlickArrowButton: created button
SlickArrowButton: created button
Main: fixed typos
ProductSelectionListener: updated definition
ItemSelectionListener: updated definition
VirtausWindow: now implements correctly the custom Events
CollectionPanel: fixed use of deleted class MainWindow
CollectionView: implemented context menu, cleanup some code
DiagramView: implements correctly the custom event
CollectionView: fixed some mouse events
DataParser: code cleanup, loading textures correctly, started implementing complementary functions
DataLoader: fixed non-static methods
Cate
ProductPanel: started coding
DataParser: implemented CreateCollection method