Version 1.2.58 released

Fix the JFileSelector and JMultipleFileSelector popup dialogs not respecting the UI if specified Look and Feel has been set
Fix a NPE in the swing auto-complete component when using the up or down arrow to navigate if the results are empty
Improve the code of the ExtendedCellEditor: the components types are now static fields
Fix cases where clicking on the button for the selection for a JFileSelector inside a PropertyEditor would empty the text field for the file path