Merge pull request #66 from cybacolt/master

changed Debian hhvm PID filepath to match default /etc/init.d/hhvm PID filepath

php/ng/map.jinja

                 'service': 'hhvm',
                 'defaults': {},
                 'server': odict([
-                    ('pid', '/var/run/hhvm.pid'),
+                    ('pid', '/var/run/hhvm/pid'),
                     ('hhvm.server.port', '9000'),
                     ('hhvm.server.type', 'fastcgi'),
                     ('hhvm.server.default_document', 'index.php'),