* major performance boost: add a flexible 'Download Queue' to handle
  downloads & list processing in parallel, default queue size is '4',
  you can raise this e.g. to '8' or '16' to get it really fast
* replace former 'whitelist mode': the new 'Jail' option
  builds an additional 'adb_list.jail' list in parallel
  which can be used manually for guest wifi or kidsafe configurations
* regex parser & query function now fully support IDN domains
  with non-ASCII characters
* add error handling in tld compression,
  to handle OOM conditions better
* adblock.notify sends now html emails,
  to get a better look & feel, even on mobile devices
* add czech regional blocklist maintained by turris omnia users
* LuCI: Support new 'Download Queue' & 'Jail' options
* LuCI: fix field width in "Runtime Information" section

Signed-off-by: Dirk Brenken <dev@brenken.org>