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

17.8-094, 12 Aug 2017: Based off OSMC commit (bd0433c32) and newclock5 (56f8e0bf)

OSMC
Add in widevine libraries required for Netflix/Amazon plugins
Re-add pvr.hts, pvr.hdhomerun, pvr.vdr.vnsi

XBMC:
[cleanup] silence compiler warnings (PR:12631, 5 commits, 35 files changed)
Add xbmcgui.Control.isVisible method (PR:12563, 1 commit, 2 files changed)
FIX: Database debug spew on demand only (PR:12534, 1 commit, 4 files changed)
AESinkALSA: Return false if we don’t know about our output channels (PR:12641, 2 commits, 3 files changed)

inputstream.adaptive:
[HLS] support license_key header information for key requests (23ffca38)
Update README.md (dbae4e1c)
NAL escaping implemented (SPS timing info failed) (2720bb51)

Includes latest addons: inputstream.adaptive (2720bb51, +15), inputstream.rtmp (476bde07), peripheral.joystick (1815c0fb), pvr.argustv (310737e2), pvr.demo (9d0aa8fb), pvr.dvblink (7d9c181f, +1), pvr.dvbviewer (9faf2413), pvr.filmon (1c9d2ebe), pvr.hdhomerun (bf23dbc0, +6), pvr.hts (1ceadf1b), pvr.iptvsimple (0f4a453b, +1), pvr.mediaportal.tvserver (d7a9acdb), pvr.mythtv (d1f3ce50), pvr.nextpvr (03a3b714), pvr.njoy (79e8e653), pvr.octonet (a77cf111), pvr.pctv (00b76689), pvr.stalker (9e28f125), pvr.vbox (44f3d04e), pvr.vdr.vnsi (6e332b0b)