Issue #10859: Add hyperlinks for bugnote IDs

To make it easier to reference bugnotes externally (in emails, IRC,
etc), bugnote IDs on the bug view page should be hyperlinked to match
the existing anchor for each bugnote.

Note that bug_view_inc.php is included by other scripts (such as when
one attempts to update a bug). For this reason, view.php is always used
when creating the bugnote hyperlink, as it doesn't make sense to send an
external user to a bug update page, just so they can view a bugnote.

Signed-off-by: David Hicks <hickseydr@optusnet.com.au>

bugnote_view_inc.php

@@ -112,7 +112,7 @@
 <tr class="bugnote" id="c<?php echo $t_bugnote->id ?>">
         <td class="<?php echo $t_bugnote_css ?>">
 		<?php if ( ON  == config_get("show_avatar") ) print_avatar( $t_bugnote->reporter_id ); ?>
-		<span class="small">(<?php echo $t_bugnote_id_formatted ?>)</span><br />
+		<span class="small">(<a href="<?php echo string_get_bugnote_view_url($t_bugnote->bug_id, $t_bugnote->id) ?>" title="<?php echo lang_get( 'bugnote_link_title' ) ?>"><?php echo $t_bugnote_id_formatted ?>)</a></span><br />
 		<?php
 			echo print_user( $t_bugnote->reporter_id );
 		?>

lang/strings_english.txt

@@ -89,6 +89,7 @@ $s_bug_monitor = 'Issue Monitored';
 $s_bug_end_monitor = 'Issue End Monitor';
 $s_announcement = 'Announcement';
 $s_stays_on_top = 'Stays on Top';
+$s_bugnote_link_title = 'Direct link to note';
 $s_delete_bugnote_button = 'Delete Note';
 $s_delete_bugnote_sure_msg = 'Are you sure you wish to delete this note?';
 $s_bug_relationships = 'Relationships';