Log Message:
Update to 5.1.3

Changelog:
2015-05-24  Jay Berkenbilt  <ejb@ql.org>

        * 5.1.3: release

        * Bug fix: fix-qdf was not handling object streams with more than
        255 objects in them.

        * Handle Microsoft crypt provider initialization properly for case
        where no keys have been previously created, such as in a fresh
        Windows installation.

        * Include time.h in QUtil.hh for time_t