In order to improve security and ease of use, added creation/generation
of dhparam file.

Make certificates path configurable.

Fix missing defaults when no `install_from_*` is set

Add support to install phusion passenger in the `ng`

Move includes to the top of nginx.conf

Fixed reference to pkg state when installing from official Debian repo

Fixed runlevel on nginx upstart file

Use oscodename instead of hard coded trusty for deb

Removed comment after testing that this change works with xenial

nginx/package: add onlyif requisite to nginx-old-init

add depenency to salt-contrib's basicauth

touch htpasswd file if it doesn't exist

Fixes #70

change watch to listen so it will only trigger a refresh of the service at the end

Replace the term vhost for server everywhere and solve issue #105

avoid crash if private_key is not shipped in pillar

Add newline to blocks like location, server, httpd and etc

Fix overwrite check testing the name of the vhost rather than setting…

Fix state fail when NGINX is already installed

Auto-restart NGINX and use pillars to set conf path when building from source

Build from source with nginx.ng

Build NGINX from source with nginx.ng state with support for passing
compile time flags necessary for installing modules such as more headers
by the openresty project.