fix method name

lib/IdPAccountManager/WebRequest.pm

@@ -31,7 +31,7 @@ my %actions = (
     select_sp      => 'req_select_sp',
     account_wizard => 'req_account_wizard',
     generate_token => 'req_generate_token',
-    validate_token => 'req_validation_token',
+    validate_token => 'req_validate_token',
     home           => 'req_home',
 );