Merge branch 'master' into next

Merge branch 'master' into next

* master: (125 commits)
  package/jpeg-turbo: security bump to version 2.0.5
  package/modem-manager: bump to version 1.14.8
  package/c-ares: security bump to version 1.17.0
  docs/website: update for 2020.02.8
  Update for 2020.02.8
  docs/website: update for 2020.08.2
  Update for 2020.08.2
  package/qemu: fix build with 64 bits time_t
  package/harfbuzz: fix build without threads
  boot/uboot: fix custom repo error message
  package/numactl: needs -fPIC
  package/dovecot-pigeonhole: fix build with per-package directories
  package/libpam-tacplus: remove duplicate LIBPAM_TACPLUS_AUTORECONF
  package/openntpd: needs host-bison
  package/xorriso: fix host option
  DEVELOPERS: drop Trent Piepho
  package/postgresql: security bump to version 12.5
  package/redis: security bump to version 6.0.9
  Revert "package/linux-backports: bump version to 5.8"
  package/linux-backports: bump version to 5.8
  ...