[TESTING] Kodi 18 (Leia) builds for Vero 2 & 4K

17.8-066, 5 May 2017: Based off OSMC commit (2fd16dd74) and xbmc (b8ad238)

OSMC:
Temporarily removed pvr.mythtv due to breakage
Fix for setting loss when rebooting from Kodi
Delete any 0 sized database files before launching. This fixes an issue with add-ons migration

XBMC
[estuary] Fix channel osd recording indicator visibility. (PR:12051, 1 commit, 1 file changed)
[addons] libKODI_guilib.h: Refactor (PR:12052, 2 commits, 1 file changed)
[music] Fix CGUIWindowMusicBase::ShowSongInfo regression (PR:12055, 1 commit, 1 file changed)
[cmake] copy_files_from_filelist_to_buildtree: evaluate all variables (PR:12043, 1 commit, 1 file changed)
[PVR] Another round of code cleanup (PR:12044, 17 commits, 41 files changed)

Includes latest addons: inputstream.adaptive (f23ba39c), inputstream.rtmp (1052cd37, +2), peripheral.joystick (07aa1fe8, +1), pvr.argustv (8f898149, +2), pvr.demo (978f4289, +2), pvr.dvblink (b7d887c1, +2), pvr.dvbviewer (d099cfad, +2), pvr.filmon (0f1d34d4, +2), pvr.hdhomerun (ab911693, +2), pvr.hts (3911c7fe, +2), pvr.iptvsimple (f83990a4, +4), pvr.mediaportal.tvserver (367b1284, +2), pvr.mythtv (30cc7e23, +1), pvr.nextpvr (e6ece9fa, +2), pvr.njoy (296f558f, +2), pvr.octonet (2a63777b, +2), pvr.pctv (eab5f856, +2), pvr.stalker (62b7908d, +2), pvr.vbox (60017353, +2), pvr.vdr.vnsi (b7c3f3b0, +2), pvr.vuplus (78df0306, +2), pvr.wmc (27a88ca2, +2)