Merge pull request #743 from nidzix/master

LB-1781, LB-1782 : Update ruhrnachrichten themes
LB-1788 : Update zeit.sd-demo.sourcefabric.org
LB-1783 Add German language file ('commentator' string needs translating)

Fixed the comments item.
Added build for rhrnt and rhrnt-section
Build again.
Pretty date plugin implementation.
Merge pull request #745 from nistormihai/master

LB-1783 Add German language file ('commentator' string needs translating...
LB-1802: Conflict with other Javascript on Ruhrnachrichten website

Fixed $.tmpl conflict now is called $.lbtmpl
Merge pull request #746 from nistormihai/master

LB-1802: Conflict with other Javascript on Ruhrnachrichten website
Merge pull request #744 from nidzix/master

LB-1797: Add css class for instagram tags
LB-1807: Bold font not displayed correctly on NZZ Live Blogs (desktop only!)

fixed