libupnp 1.6 is starting to get really old and caused bugs recently with
the new winpthread rework for contribs.

Added contrib patches:
  - revert-ifaddrs.patch (revert changes breaking android)

Removed contrib patches:
  - 0001-Do-not-try[...]           -> Fixed upstream by 386b7ed7
  - dont_use_down_intf.patch       -> Fixed upstream by 1f2e3b88
  - fix_infinite_loop.patch        -> Fixed upstream by 4367cbfa
  - libpthread.patch               -> Replaced
  - missing_win32.patch            -> Fixed upstream by 02bb90c5
  - no-getifinfo.patch             -> Fixed upstream by 0296c3cd
  - use-inet-pton.patch            -> Fixed upstream by 44cdeeb7
  - use-unicode.patch              -> Fixed upstream
  - windows-random.patch           -> Fixed upstream by 44e092a6

Edited patches (mostly to fit the new sources):
  - miniserver.patch
  - upnp-no-debugfile.patch
  - pthread-w32-checks.patch (Partially fixed upstream by e0f44dd9)
  - libupnp-win32.patch (Partially fixed upstream)
  - libupnp-win64.patch (Partially fixed upstream by 421d5d28)
  - windows-version-inet.patch
  - libupnp-win32-exports.patch

Renamed patch:
  - pthread-w32-force -> pthread-force (Gets applied to linux too now)