[tvheadend] Updated addon version, pkg site. Removed enable-timeshift as it is enabled by default.
tvheadend: bump addon
linux: clean up defconfig location
kodi: set LimitNOFILE to 16384, to make mythtv pvr addon happy

Signed-off-by: Stephan Raue <stephan@openelec.tv>
gdb: rebuild
kodi: update to kodi-14-ea20b83
kodi-pvr-addons: update to kodi-pvr-addons-14d9828