Release 2.1.0, merged in 1313 to HEAD.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/branches/strict@1352 48356398-32a2-884e-a903-53898d9a118a

maintenance/common.php

@@ -0,0 +1,9 @@
+<?php
+
+function assertCli() {
+    if (php_sapi_name() != 'cli' && !getenv('PHP_IS_CLI')) {
+        echo 'Script cannot be called from web-browser (if you are calling via cli,
+set environment variable PHP_IS_CLI to work around this).';
+        exit;
+    }
+}