Add gpg email address or key ID

Sometimes on a profile people only give their key ID

src/freedombone-controlpanel-user

 	trap "rm -f $data" 0 1 2 5 15
 	dialog --title $"Add someone's PGP/GPG key" \
 		   --backtitle $"Freedombone User Control Panel" \
-		   --inputbox $"Enter their email address below" 8 60 2>$data
+		   --inputbox $"Enter their email address or Key ID below" 8 60 2>$data
 	sel=$?
 	case $sel in
 		0)
 			ADD_EMAIL_ADDRESS=$(<$data)
 			if [ ${#ADD_EMAIL_ADDRESS} -gt 2 ]; then
+
+				address_is_valid=
+
 				if [[ $ADD_EMAIL_ADDRESS == *"@"* && $ADD_EMAIL_ADDRESS == *"."* ]]; then
+					address_is_valid=1
+				else
+					if [[ $ADD_EMAIL_ADDRESS == "0x"* ]]; then
+						address_is_valid=1
+					fi
+				fi
+
+				if [ $address_is_valid ]; then
 					clear
 					gpg --search-keys $ADD_EMAIL_ADDRESS
 				else
 					dialog --title $"Unrecognised email address" \
 						   --backtitle $"Freedombone User Control Panel" \
-						   --msgbox $"This doesn't look like an email address" 6 50
+						   --msgbox $"This doesn't look like an email address or key ID" 6 50
 				fi
 			fi
 			;;