Changed ADIF spec version to 3.1.0 which is the latest

application/views/adif/data/clublog.php

@@ -1,4 +1,4 @@
-<ADIF_VERS:3>2.2
+<ADIF_VERS:5>3.1.0
 <PROGRAMID:<?php echo strlen($this->config->item('app_name')); ?>><?php echo $this->config->item('app_name')."\n"; ?>
 <PROGRAMVERSION:<?php echo strlen($this->config->item('app_version')); ?>>Version <?php echo $this->config->item('app_version')."\n"; ?>
 <EOH>

application/views/adif/data/exportall.php

@@ -2,7 +2,7 @@
 	header('Content-Type: text/plain; charset=utf-8');
 	header('Content-Disposition: attachment; filename="'.$this->session->userdata('user_callsign').'-'.date('dmY-Hi').'.adi"')
 ?>
-<ADIF_VERS:3>2.2
+<ADIF_VERS:5>3.1.0
 <PROGRAMID:<?php echo strlen($this->config->item('app_name')); ?>><?php echo $this->config->item('app_name')."\n"; ?>
 <PROGRAMVERSION:<?php echo strlen($this->config->item('app_version')); ?>>Version <?php echo $this->config->item('app_version')."\n"; ?>
 <EOH>

application/views/adif/data/exportsat.php

@@ -2,7 +2,7 @@
 	header('Content-Type: text/plain; charset=utf-8');
 	header('Content-Disposition: attachment; filename="'.$this->session->userdata('user_callsign').'-'.date('dmY-Hi').'.adi"')
 ?>
-<ADIF_VERS:3>2.2
+<ADIF_VERS:5>3.1.0
 <PROGRAMID:<?php echo strlen($this->config->item('app_name')); ?>><?php echo $this->config->item('app_name')."\n"; ?>
 <PROGRAMVERSION:<?php echo strlen($this->config->item('app_version')); ?>>Version <?php echo $this->config->item('app_version')."\n"; ?>
 <EOH>