eliminating phar's interception of zend_compile in favor of a new to-be-added hook in PHP 5.3+,
allow "include 'phar:///path/to/my.phar';" to work as equivalent to
php /path/to/my.phar
this slight change in scripting still allows inclusion and execution of phar stub, but removes the need to
check and modify path in zend_compile, which allows us to play much nicer with external tools like
debuggers/opcode caches
1) segfault in phar_buildfromdirectoryiterator8.phpt
2) tests failing because SKIPDOTS is default on 64 bit, not on 32
3) Marcus, you really need to add SKIPDOTS as a class constant, so we don't have to use 0x00001000
copy virtual_dirs to avoid segfault on multi-process
fix metadata reading for phar.cache_list
initialize manifest to exact size needed (performance increase)
fix freeing of signature on error to use the correct persist value (fixes segfault on error in cache.list)
reset EG(regular_list) so it is identical to how we found it
at startup. This caches the manifest, so that on first access to a phar archive, no file manifest parsing occurs.
This could use further tweaking. For instance, the full copy of the manifest into the current process may be unnecessary if refcounting could be external
to the manifest. This would be another significant gain. With APC, I measure a slight perf increase to 19 req/sec up from 16 req/sec, without it approaches
regular PHP at 3.8 req/sec (regular is 4 req/sec). This is benching phpMyAdmin
