LB-839 : Add 'Loading' wheel whenever asynchronous info is loading

Small library added.
LB-394 : Flickr, Instagram -> GUI overlapping between post description and "Show more" button

Fixed
LB-927 : in instagram import image preview is crappy resized

Fixed
LB-839 : Add 'Loading' wheel whenever asynchronous info is loading

Changes from param to methods
Merge pull request #67 from nidzix/devel

Friday CSS fixes + loading wheel