Merge pull request #3 from nistormihai/master

New embed plugin.properties.tpl
superdesk: backend: unit: added pip requirements install
set proxy headers for server app via nginx config
set superdesk server url env for gunicorn
escape nginx variables
use $URL as part of SERVER_URL
Merge pull request #6 from petrjasek/patch-2

set superdesk server url env for gunicorn
Merge pull request #5 from petrjasek/patch-1

set proxy headers for server app via nginx config
superdesk: backend: fixed SERVER_NAME variable name
nsc: simple test: added anchorage, globalnews, meydan, quetzal and rockstar
liveblog: added behave and selenium scripts
liveblog: fixed behave script
liveblog: fixed behave script - 2
liveblog: fixed behave script - 3
liveblog: fixed behave script - 4
liveblog: fixed behave script - 5
liveblog: fixed behave script - 6
liveblog: fixed behave script - 6
liveblog: fixed behave script - 8
liveblog: fixed behave script - 9