configs: debian packages added

- added circus nginx conf fix.

Signed-off-by: rscnt <rascnt@gmail.com>

configs/circus.nginx.ini.example

@@ -1,5 +1,5 @@
 [watcher:nginx]
-cmd = /usr/sbin/nginx -c ./nginx.dynamicweb.conf
+cmd = /usr/sbin/nginx -c nginx.dynamicweb.conf
 numprocesses = 1
 use_sockets = False
 copy_env = True

requirements.debian.txt

@@ -1,9 +1,13 @@
-python-dev
+python3-dev
 virtualenvwrapper
 libzmq-dev
 libevent-dev
 nginx
 postgresql
 postgresql-dev
+postgresql-server-dev-9.4
 memcached
 libmemcached-dev
+libxml2-dev 
+libxslt1-dev 
+python3-lxml # this depends on the amount of ram that the server has.