FIX: angular controllers style

Fixed issue witch proto style of controllers.
FIX safari login problem

- removed non-selectable property
FIX angular downgraded

Fixes production problem on SZH.
FIX Portal editor menu calculation

Fixed issue with wrong menu calculation.
Portal editor support for articles topping

Articles now contain last modified timestamp and are ordered by it.
Portal editor restyled showcase and category widgets

Changed styling of both widgets.