Version 1.0 beta4 (sync)

Changelog:

- use again the conservative governor usual canceling of dbs work syncron instead of asyncron when exiting the governor as this change was
  only needed in combination with older hotplug implementations. as also done in opo version removed again all previously merged kernel crash
  fix attempts and precautions as they were not really needed
- bump version to beta4 to bring opo/i9300 versions in sync again