- ignore tentative addresses (#246297)
    - improve init script (#247003)
    - fix sleep patch
    - ease Autokey setup (#139673)
    - change default keysdir to /etc/ntp/crypto
    - set crypto password in /etc/ntp/crypto/pw
    - don't use randfile if /dev/urandom is used by OpenSSL
    - change default statsdir to /var/log/ntpstats/, use statistics type as
        default filename
    - package more doc files