sync dorimanx system_tune_on_init.sh:

" After reading a lot about EXT4 i have set more faster jornal and more!

i have found that barrier=0 can be very bad for device that can stuck
and dont have external power support, data can be lost, but more performance
i prefer to have my data safe.

the data_writeback is safe to use with commit=10 and barrier=1
good performance on I/O and safe jornal commits."
 Tuned OOM kill to work as default on sleep to prevent SODS on sleep.

Some users just dont have idea how to manage there apps that auto load
and eat all ram, even on sleep, and kill kernel.

So i dont see any other idea, we must use full running OOM even on sleep.

need to test battery. and even add trigger to disable if user wish to
save little more power.

TNX Dorimanx!