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

17.8-069, 11 May 2017: Based off OSMC commit (c12962c4d) and newclock5 (e025cca)

OSMC:
Temporarily removed pvr.mythtv due to breakage

XBMC:
FTPParse.cpp: use std::string (PR:12067, 1 commit, 1 file changed)
[cmake] copy_files_from_filelist_to_buildtree: fix 1afb6dcbd8 (PR:12068, 1 commit, 1 file changed)
[cmake] AddonHelpers: fix install directory exclude syntax (PR:12070, 1 commit, 1 file changed)

Includes latest addons: inputstream.adaptive (7bde41f9, +3), 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 (9aeb5e9d, +3), 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)