[TESTING] Kodi 18 (Leia) builds for Raspberry Pi

17.8-093, 10 Aug 2017: Based off OSMC commit (e784f0fbe) and newclock5 (4d281e7)

OSMC
Add in widevine libraries required for Netflix/Amazon plugins

XBMC:
DemuxClient: Force intialization of stream after OpenStream (PR:12651, 2 commits, 10 files changed)

inputstream.adaptive:
[CI] fix travis & add appveyor (PR:48, 2 commits, 2 files changed)
shared_ptr for m_session (video switch segfault fix) (a2cb3e79)
[HLS] implement domain relative paths (8234217f)
[HLS + CODEC] Fixups (9d9dee54)
fix wrong return value AudioCodec::GetInformation (5cd22394)
[Fix] Streamchange detection (samplerate / scale) (ee6d026b)
add stdlib.h include in TSReader.cpp (471cbb32)

pvr.dvblink:
simplify installation file (PR:70, 1 commit, 1 file changed)

Includes latest addons: inputstream.adaptive (767f25c5, +12), inputstream.rtmp (476bde07), peripheral.joystick (1815c0fb), pvr.demo (9d0aa8fb), pvr.dvblink (7d9c181f, +1), pvr.dvbviewer (9faf2413), pvr.filmon (1c9d2ebe), pvr.hdhomerun (bf23dbc0, +6), pvr.iptvsimple (0f4a453b, +1), pvr.mediaportal.tvserver (d7a9acdb), pvr.mythtv (d1f3ce50), , pvr.octonet (a77cf111), pvr.pctv (00b76689), pvr.stalker (9e28f125), pvr.vbox (44f3d04e), pvr.vuplus (c5265ae5, +3), pvr.wmc (1d655540)