LB-1435: Twitter, flickr, instagram, soundcloud and SMS sections sometimes not loading

Fixed
Merge pull request #123 from vladnicoara/master

LB-1435: Twitter, flickr, instagram, soundcloud and SMS sections sometim...
Merge pull request #121 from nidzix/master

LB-1079 : Infinite "loading" state indicator
Update start.html
APY-145
:
When a request is with my all hrefs to models on response will contain my
Merge pull request #126 from ioanpocol/master

APY-145 - implemented by Gabi
APY-146
:
All hrefs to other models don't contain the scheme (http/https)
Merge pull request #127 from ioanpocol/master

APY-146
LB-1526: "Link" post type improvement

Add css changes