Fix dowload Urls
Extract database settings from $_SERVER['DATABASE_URL']
Append env vars to php-fpm.conf
Increase max_children to 250
Collect & tar.gz compiled hhvm (and dependancies)
Cleanup processes on exit
Switch to hiphop-php 2.1.0-dev
Ensure $_SERVER['REQUEST_URI'] is correct when proxying via nginx
Merge branch 'master' into nginx-phpfpm

Conflicts:
	bin/compile
	config/nginx/wordpress.conf.erb
bin/start.sh -> log level = Debug starts PHP command line web server
Fix PHP download url error