Fancy Kernel r39

- file_contexts: add timerirq entry (from CM10.2 upstream)
- fstab.tuna: change mounts according to writeback journalling
- init.tuna.rc: add camera entry (from CM10.2 upstream)
- fancyinit1/2: change busybox entries according to new binary path
- fancyinit2: enable writeback journalling mode for /system, /data and /cache on first boot
- fancyinit2: remove pretty much redundant 'zipalign apks on boot' function
- fancyinit2: remove pretty much redundant 'trim all partitions on first boot' function
- remove fuss updater script due to URL-resolve-problem that came with Android 4.3
- replace old busybox binary with a new, stripped binary that mostly has only the coreutils included and therefore is enough for the startup script
- move busybox binary to /sbin/binaries, so it won't interfere with the system's busybox