Added staging requirements file

This change is necessary in order to provide a more complete dev/stag/prod classification for automation deploying.
Although in this specific case we have two identical files (stag.txt and prod.txt), this may change in the future.
Fix in sending mail
Added WSGI file
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 Changes to be committed:
	modified:   static/nui/style/final.css
	modified:   static/nui/style/jquery-ui-1.8.17.custom.css
	modified:   static/nui/style/wholestyle.css
Copiati i file base.css e forms.css dall'admin di django e cambiati i riferimenti nell'html
modificato css base
	modified:   static/nui/style/base.css
modifiche al login e alle schede con sostituzioni documentate nel setting.py
 Changes to be committed:
	modified:   default_settings.py
	modified:   templates/base.html
	modified:   templates/registration/login.html
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 Changes to be committed:
	modified:   default_settings.py
	modified:   static/nui/scripts/jquery.rees.js
	modified:   static/nui/style/demo_table.css

 Untracked files:
	admin/templates/admin/base_site.html~
	default_settings.py~
	gas_admin/templates/gas_admin/base_site.html~
	rest/templates/blocks/menu.xml~
	rest/templates/html/index.html~
	settings.py~
	static/img/logo_cliente.png
	static/img/logo_cliente00.png
	static/img/logo_cliente01.png
	static/img/logo_cliente_small.png
	static/img/logo_labs.png
	static/img/logo_labs000.png
	static/img/logo_labs001.png
	static/nui/img/milky/supplier128x128old.png
	static/nui/scripts/jquery.rees.js~
	static/nui/scripts/jquery.rees_old.js
	static/nui/style/base.css~
	static/nui/style/demo_table.css~
	static/nui/style/final.css~
Commit dell'8 novembre, a Chiaravalle