HALT Patch

The attach patch implements a special "token" <?php HALT; ?> that can be used to stop the Zend lexical parser from parsing any data after this token. The idea behind this patch is to allow tucking on of any data (binary and otherwise) to the PHP script without having to encode it. It also saves on memory/cpu that normally be used/needed to parse the data. Memory is particularly important point, since many systems run with default memory limit (8 megs) and would easily hit it when a script had a 2-4 megs of data tacked on. The patch would be extremely helpful for application distribution where the entire install/upgrade script can be just a single script. The syntax chosen for the patch was design specifically in such a way as to not cause parser errors in older PHPs without the support for this feature. Ilia