Add hardened build option and correct changelog dates
    
    This adds the hardened build option to our spec file used for
    developer RPM builds.  This makes the build use PIE flags and
    full relro during compilation.
    
    In addition, this corrects some of the dates in changelog entries.
    More specifically, the day of week did not line up with the date.
    
    These changes bring our spec file in-line with the Fedora 19+ spec
    file.