Fixing stuff and added new things!

*tuned the min gamma back to 1 as default
*fixed AFTR only tune for JB SAMMY
*added LOW MEM Kill control
*added alert for all STweaks internel pull/checks, some users dont have wget!
so they cant do the checks, now they will know that they have to update busybox.
*fixed touchscreen freq min! we cant use 0 it's not allowed! min is 100Mhz
*and some small tunings..