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.
Added date formatter.
Removed version with date formatter.

This reverts commit 659a6b1fb57115e714359e54f65e12ca7ddf468f.
Added date formater (Date() to backend format)
Added portal editor icons.