TODO
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	o Drag and Drop to panel - DONE (miss panel support)
	o Exporting xfdesktop menu - DONE
	o Most Used apps - DONE
	o Avoid flickering - DONE
	o No item message on the apps treeview
	o Recursive directory analysis
	o Menu on right click on apps treeview
	o Custom paths
	o About box
	o Support for legacy apps