added SDC_SESSION_COOKIE_KEY
added SDC_SESSION_COOKIE_KEY

steemit/steemit.com,TimCliff/steemit.com,GolosChain/tolstoy,steemit/steemit.com,TimCliff/steemit.com,steemit/steemit.com,TimCliff/steemit.com,GolosChain/tolstoy,GolosChain/tolstoy