Revert to 2.0.1, it appears that the 2.1.0 merge was done improperly.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/branches/strict@1367 48356398-32a2-884e-a903-53898d9a118a

maintenance/common.php

@@ -1,9 +0,0 @@
-<?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;
-    }
-}