added karma price in item view
Added new filter that allows the filtering of many recipes that can no longer be obtained because they require a special unlock.
assume user buys ingredients in multiples of recipe quantities (that is: in bulk)
fixed calculation of item multiplier for some cornercases
fixed typo in last fix
Merge remote-tracking branch 'mercutiodesign/karma' into karma

Conflicts:
	controllers/helpers.php
	templates/item.html.twig
	templates/recipe_list.html.twig