Refactor article_new view
added icons for iPhone and iPad
#444 done, jetzt gibts quadratische Profilbilder
#443 changed position of feedback- and library-box, fair alternative only visible, when article new and not fair, handmade...
fixed a librar display related test
changed pioneer icon on startpage to square
ipd icon additions
addition to iOS icons
Statusanzeige für Genossenschaftsanteile auf der Startseite
startseite anteile fortschritt
startseite anteile fortschritt
Merge branch 'release' into develop

Conflicts:
	app/assets/stylesheets/kopfwelt/_user.scss
	app/models/article.rb
	app/views/articles/show/_article_contents.html.haml
	app/views/welcome/index.html.haml
	spec/features/articles_spec.rb
fix errors from last merge