Update xbmc-rbp to version 13.0 (Gotham).

Important: Please note that this change is *untested*.
Fixed missing sha256sum and TexturePacker path
alarm/fake-hwclock: use systemd timer unit, to 0.3

* PKGBUILD: modified to install directories with correct permissions (in
  case of a restrictive umask).
* PKGBUILD: change arch to any as this is arch-indep.
* fake-hwclock.sh: add 'load' command that sets the system time only if
  the current time is older; make 'set' an deprecated alias of it.
* Add fake-hwclock-save timer and service that saves the time every 15
  minutes.
* install: suggest to enable timer unit instead of cron.
Don't check the md5sum of linux-chromebook source tarballs
core/linux-raspberrypi to 3.12.20-4
core/linux-raspberrypi-latest to 3.14.4-4
extra/qt5 to 5.3.0-3
extra/qt5 fix
extra/qt5 moar fix
Merge pull request #853 from hcs64/linux-chromebook-skip-verify-tar

Don't check the md5sum of linux-chromebook source tarballs
Merge pull request #850 from Lekensteyn/fake-hwclock

alarm/fake-hwclock: use systemd timer unit, to 0.3
core/gcc to 4.9.0-3
core/linux-raspberrypi-latest to 3.14.4-5
community/gradm to 3.0.201405281853-1
alarm/uboot-kirkwood to 2014.04.R4-1
community/scribus to 1.4.4-1
core/linux-boundary to 3.10.17-4
core/readline to 6.3.006-1
core/linux-mmp to 3.10.41-1
community/libvirt to 1.2.5-1