Changed 03-custom-modifiers.t to use load-modifiers().

t/03-custom-modifiers.t

@@ -11,7 +11,6 @@ BEGIN {
 
 use Test;
 use Flower;
-use Example::Modifiers;
 
 plan 1;
 
@@ -20,7 +19,7 @@ my $xml = '<?xml version="1.0"?>';
 my $template = '<test><woah tal:replace="woah:crazy"/></test>';
 my $flower = Flower.new(:template($template));
 
-$flower.add-modifiers(Example::Modifiers::all());
+$flower.load-modifiers('Example::Modifiers');
 
 is $flower.parse(crazy => 'hello world'), $xml~'<test>Woah, hello world, that\'s awesome!</test>', 'custom modifiers';