Modular backuptool.sh.  Executes backup and restore methods defined in arbitrary /system/addon.d/*.sh scripts.

Set permissions on /system/addon.d/ and files within.

Patch Series
============
http://review.cyanogenmod.com/#change,13265
CyanogenMod/android_build
  * edify generator
http://review.cyanogenmod.com/#change,13266
CyanogenMod/android_system_core
  * permissions on /system/addon.d
http://review.cyanogenmod.com/#change,13267
CyanogenMod/android_vendor_cm
  * 50-cm.sh reference backup script
  * modular backuptool.sh
  * support backuptool.functions used by /system/addon.d/*.sh scripts

Change-Id: I4f1464ea8d55f45d47ba760a7a448036a46feb00
Init.d  and userinit support
healthd (squash)

increase healthd fast timer to 10mins instead of 1min

healthd 1 min wakeups are causing significant power impact
during static display use case. so increasing the timer to 10min.

Change-Id: If7a514e4152789144242e198175918b6687c3bcf

healthd: Disable the RTC wakeup timer

The timer is used here to avoid battery drained to zero. But the periodic
wakeup during suspend should not be needed as MSM PMIC already support
that by trigger interrupt to avoid the critical low battery situation.
This will save more power. And if the design is not support HW interrupt
of low battery, need to enable the timer to periodic check.

Change-Id: I040b4bc8548dc59b5e7cacb9a5a8a3557604f458
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>

healthd: disable periodic polled battery status

This change will stop too much of logging made by healthd in kernel logs

Change-Id: I85542f481bf9b688874598b4360a8692b2c4d34d
Signed-off-by: Chet Kener <Cl3Kener@gmail.com>