added old_ref

cai.xml

@@ -22,6 +22,7 @@
                    values_no_i18n="true" default="lwn"  values_sort="false" />
             <text key="name" text="name" it.text="Nome in formato esteso" default="" />
             <text key="ref" text="ref" it.text="Ref (numero o codice del sentiero)" default="" />
+            <text key="old_ref" text="old_ref" it.text="Vecchio Ref (numero o codice non più utilizzato)" default="" />
             <combo key="cai_scale" text="cai_scale" it.text="Scala di difficoltà CAI" values="T,E,EE,EEA:F,EEA:PD,EEA:D,EEA:MD,EEA:E,EAI"
                    display_values="T,E,EE,EEA:F,EEA:PD,EEA:D,EEA:MD,EEA:E,EAI"
                    short_descriptions="Touristic hikers,Regular hikers,Expert hikers,Expert hikers with climbing equipment and moderate difficulty,Expert hikers with climbing equipment and medium difficulty,Expert hikers with climbing equipment and high difficulty,Expert hikers with climbing equipment and very high difficulty,Expert hikers with climbing equipment and extremely high difficulty,Expert hikers with snow equipment"
@@ -33,7 +34,7 @@
                    values_no_i18n="true" default="survey:CAI" delete_if_empty="true" values_sort="false" />
             <text key="survey:date" text="survey:date (YYYY-MM-DD)" it.text="Data del rilievo (AAAA-MM-GG)" default="" />
             <combo key="osmc:symbol" text="Hiking Path Symbols (osmc:symbol)" values="red:red:white_stripe:000:black"
-                   display_values="red:red:white_stripe:000:black" it.text="Simboli dei segnavia del percorso (osmc:symbol)" 
+                   display_values="red:red:white_stripe:000:black" it.text="Simboli dei segnavia del percorso (osmc:symbol)"
                    short_descriptions="waycolor:background[:foreground][[:foreground2]:text:textcolor]"
                    values_no_i18n="true" default="red:red:white_stripe:000:black" delete_if_empty="true" values_sort="false" />
             <combo key="symbol" text="symbol" it.text="Simbolo in forma leggibile inglese" default="" delete_if_empty="true"