Upgrade to PHP 5.5.4

update README for private repo info

Latest appstrap with composer and public doc root set

Apache 2.4.3 PHP 5.4.9

improved build w/ vulcan, stripped sasl, postgres support from php an…

…d smaller binaries, changing the serverlimit back to 8 clients, log request time to serve

added jpeg and PNG support for GD. bsdiff so releases can simply be patched against the base buildpack binary,
mcrypt support, missing libmemcached.so.11

Merge pull request #4 from tmaher/master

PHP 5.3.10 and Apache 2.2.22 upgrade