New definition (nginx_psgi_site) to add uwsgi-psgi sites over nginx

New recipe 'reverse_proxy' to configure nginx as reverse proxy

	new file:   definitions/nginx_psgi_site.rb
	modified:   metadata.rb
	modified:   recipes/default.rb
	modified:   recipes/reverse_proxy.rb
	deleted:    recipes/with_php-fpm.rb
	modified:   templates/default/passenger-site.erb
	new file:   templates/default/psgi_site.erb
	modified:   templates/default/reverse_proxy.erb
	new file:   templates/default/ws.conf.erb
Added new defitions to support php, passenger and uwsgi sites, with templates
Bump version to 0.1.1

	new file:   definitions/nginx_passenger_site.rb
	new file:   definitions/nginx_php_site.rb
	deleted:    definitions/nginx_psgi_site.rb
	new file:   definitions/nginx_uwsgi_site.rb
	modified:   metadata.rb
	new file:   templates/default/passenger_site.erb
	renamed:    templates/default/psgi_site.erb -> templates/default/uwsgi_site.erb