removed some elements from subdomains
other fixes by Curini
footer link to blank page
removed markdown plugin and integrated a new, cool editor for blogs: ckeditor.
added youtube plugin and added security options to prevent users to delete files each other
stuck of proposal sortable edit page
newsletter settembre
fix on proposal update
version and first page
Merge branch 'version_2_8_ckeditor' into version_2_8

Conflicts:
	db/schema.rb
Merge branch 'master' into version_2_8

Conflicts:
	app/views/home/index.html.erb
	app/views/layouts/_footer.html.erb
	config/initializers/version.rb
wrong environment.rb