Document return value for Storage::rename

Add simple new test for Text.t
Add ClassName.t test
Prevent Form/ClassName from passing classes with spaces in them and
remove redundant test for digits in regexp.
Add a new test to Storage.t for getLastError

lib/WebGUI/Form/ClassName.pm

@@ -71,7 +71,7 @@ Returns a class name which has been taint checked.
 sub getValueFromPost {
 	my $self = shift;
 	my $value = $self->session->form->param($self->get("name"));
-	$value =~ s/[^\w\d\s:]//g;
+	$value =~ s/[^\w:]//g;
         return $value;
 }