LB-1526: "Link" post type improvement

Improve the way of fetching data and displaying link on admin site
Improve the tageswoche-multi embed theme link post styling
LB-1526: "Link" post type improvement

Styling improvement added to default theme
LB-1474 Rheinische Post live blog not rendering on IE

Increased preprocesing time to 775 milliseconds
Merge pull request #657 from nistormihai/liveblog16_clean

LB-1474 Rheinische Post live blog not rendering on IE
Merge pull request #656 from nidzix/liveblog16

"Link" post type improvement
LB-1517 :The chained blog sync fails because the request URLs don't contain the scheme (http)

Add a few info logs