Merge pull request #725 from nistormihai/master

LB-1534: Support NZZ on making the embed work
Update INSTALL.md

Changed a filename under Configuring LiveBlog
Merge pull request #727 from espenlg/patch-1

Update INSTALL.md
LB-1752: rest tests: migrated to behave+wooper
rest_tests: generalized liveblog-related request function
LB-1740 Collab post to GMT time
Merge pull request #729 from actionless/rest_tests

LB-1752: rest tests: migrated to behave+wooper
LB-1729 Liveblog-demo theme fix
Merge pull request #734 from vladnicoara/liveblog-demo-theme

LB-1729 Liveblog-demo theme fix
Merge pull request #730 from vladnicoara/collab-gmt-to-local-time

LB-1740 Collab post to GMT time
LB-1753: Create theme for Ruhrnachrichten

Create two themes
1. for section page
2. for article page
rest tests: updated to use new versionof wooper
rest tests: made generalized fixtures
Merge pull request #736 from actionless/rest_tests

REST API tests updates
Merge pull request #735 from nidzix/master

LB-1753: Create theme for Ruhrnachrichten
LB-1740 Collab post to GMT time

If there is no date on post don't parse it.