making progress - up to 42/phar vs. 48/disk with these optimizations

fix windows build and more performance jumps (these are minor)
implement real copy-on-write
use virtual_dirs for wrapper stat

HUGE speed improvement, from 19 req/sec to 27 req/sec for phpMyAdmin - now speed with apc+phar.cache_list = on-disk speedcvs diff -u |less This is by generating a list of virtual directories and usi

HUGE speed improvement, from 19 req/sec to 27 req/sec for phpMyAdmin - now speed with apc+phar.cache_list = on-disk speedcvs diff -u |less This is by generating a list of virtual directories and using those in stat calls instead of scanning the whole manifest hash table. on-disk phpMyAdmin = 28 req/sec

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ensure we don't try to use an unitialized hash table

fix error messages

- MFH
- Make internal code forward-compatible. This included a binary cast in the default stub, hence test updates.

This commit was manufactured by cvs2svn to create branch 'PHP_5_3'.