Changeset processing: reopened -> fixed

With default MantisBT settings, 'reopened' resolution is above 'fixed'
but below 'not fixed' thresholds (see $g_resolution_enum_string,
$g_bug_resolution_fixed_threshold/$g_bug_resolution_notfixed_threshold).

This adds a special case to make sure the resolution is set to 'fixed'
if it is currently 'reopened', as a workaround for MantisBT issue
http://mantisbt.org/bugs/view.php?id=16054

Fixes #191

Author: dregad

Source/Source.API.php

@@ -378,7 +378,12 @@ function Source_Process_Changesets( $p_changesets, $p_repo=null ) {
 				$t_update = true;
 			}
 
-			if ( $t_bug->resolution < $t_fixed_threshold || $t_bug->resolution >= $t_notfixed_threshold ) {
+			if( $t_bug->resolution < $t_fixed_threshold || $t_bug->resolution >= $t_notfixed_threshold
+				# With default MantisBT settings, 'reopened' is above 'fixed'
+				# but below 'not fixed' thresholds, so we need a special case
+				# to make sure the resolution is set to 'fixed'.
+				|| $t_bug->resolution == REOPENED
+			) {
 				$t_bug->resolution = $t_resolution;
 				$t_update = true;
 			}