LB-1151: On ctk.superdesk.pro there is a js error for IE8 and IE10 and it is related to date format

fixed.
Date.parse for closedOn date.
and json_parse for meta if is ie5
Merge pull request #410 from nistormihai/master-clean

LB-1151: On ctk.superdesk.pro there is a js error for IE8 and IE10 and i...