fixed a bug where price filter for articles with price of 0 did not work
Merge branch 'master' of github.com:fairnopoly/fairnopoly
HOTFIX #951 - javascript & rendering fixes for deletion confirmations (+ notice helper test)
Merge branch 'master' into develop
Merge branch 'develop' into feature-cart

Conflicts:
	app/helpers/notice_helper.rb
	test/helpers/notice_helper_test.rb