Italian language update (#377)

Author: bovirus

Rapr/Lang/Language.it-IT.resx

@@ -448,7 +448,7 @@ Licenza:
     <value>ID estensione</value>
   </data>
   <data name="Column_InstallDate" xml:space="preserve">
-    <value>Data Installazione</value>
+    <value>Data installazione</value>
   </data>
   <data name="Menu_Options" xml:space="preserve">
     <value>&amp;Opzioni</value>