gitweb: History: blob and tree are first, then commitdiff, etc

Reorder link display in history to be consistent with other
list displays: log, shortlog, etc.  We now display:

	blob | commitdiff
	blob | commitdiff | diff_to_current

and

	tree | commitdiff

Instead of the old history format where "blob" and "tree"
are between "commitdiff" and "diff_to_current" if present/
applicable.

Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

gitweb/gitweb.perl

@@ -2071,8 +2071,8 @@ sub git_history_body {
 		                          href(action=>"commit", hash=>$commit), $ref);
 		print "</td>\n" .
 		      "<td class=\"link\">" .
-		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff") . " | " .
-		      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype);
+		      $cgi->a({-href => href(action=>$ftype, hash_base=>$commit, file_name=>$file_name)}, $ftype) . " | " .
+		      $cgi->a({-href => href(action=>"commitdiff", hash=>$commit)}, "commitdiff");
 
 		if ($ftype eq 'blob') {
 			my $blob_current = git_get_hash_by_path($hash_base, $file_name);