Corretti 73 errori con  Servizio di validazione del W3C per i fogli di stile a cascata (CSS)
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	modified:   default_settings.py
	modified:   static/nui/style/demo_table.css
	modified:   static/nui/style/final.css
	modified:   static/nui/style/forms.css
	modified:   static/nui/style/fullcalendar/fullcalendar.css
	modified:   static/nui/style/jquery-ui-1.8.17.custom.css
	modified:   static/nui/style/report.css
	modified:   static/nui/style/rest.css
	modified:   static/nui/style/wholestyle.css