issue 82 dropped.
 82) responsive design and long tests
     long text post without picture for all API's
     long text post with picture for all API's
     maybe different limit between short and long text in gifts/api_gift (share) and in users/api_gift (balance)
     longer texts in gifts/api_gift and shorter texts in users/api_gift
     make limit responsive? shorter texts in a small screen and longer texts in a big screen? (JS)