Updates to t3olayout v2

* Usage of bootstrap v4-beta
* Usage of gridelements
* Changes templates to fulfill bootstrap standard
4 jobs for develop in 5 minutes and 4 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #5328
build

00:01:20

failed #5325
build

00:01:04

 
  Layout
passed #5326
layout

00:02:48

 
  Deploy
passed #5327
deploy-develop

00:00:55