linux: update to linux-3.13.6

Signed-off-by: Stephan Raue <stephan@openelec.tv>
eventlircd: use /run/lirc instead /var/run/lirc for lircs pid and socket files

Signed-off-by: Stephan Raue <stephan@openelec.tv>
projects/RPi/filesystem: move /etc/modules to /usr/lib/modules-load.d/

Signed-off-by: Stephan Raue <stephan@openelec.tv>
Merge branch 'openelec-4.0' of https://github.com/OpenELEC/OpenELEC.tv into openelec-4.0