~d-jj/+junk/sudo

* Merge from Debian unstable. (LP: #1451274, LP: #1219337)
  Remaining changes:
  - debian/rules:
    + compile with --without-lecture --with-tty-tickets --enable-admin-flag
    + install man/man8/sudo_root.8 in both flavours
    + install apport hooks
  - debian/sudoers:
    + also grant admin group sudo access
  - debian/source_sudo.py, debian/sudo-ldap.dirs, debian/sudo.dirs:
    + add usr/share/apport/package-hooks
  - debian/sudo.pam:
    + Use pam_env to read /etc/environment and /etc/default/locale
      environment files. Reading ~/.pam_environment is not permitted due to
      security reasons.
  - debian/control:
    + dh-autoreconf dependency fixes missing-build-dependency-for-dh_-command
  - Remaining patches:
    + keep_home_by_default.patch: Keep HOME in the default environment
    + debian/patches/also_check_sudo_group.diff: also check the sudo group
      in plugins/sudoers/sudoers.c to create the admin flag file. Leave the
      admin group check for backwards compatibility.
* Dropped patches no longer needed:
    + add_probe_interfaces_setting.diff
    + actually-use-buildflags.diff
    + CVE-2014-9680.patch