[All] Code Cleanup: removed "protected" everywhere as inspired by Jans review

 * protected and nothing are not the same, see:
   http://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html

 * used: sed -i "s/protected //" src/org/simlar/*.java and than added "protected" again to resolve compile errors
[VibratorThread] moved vibration into its own handler based thread
[VibratorThread] now respects vibration policy
[VibratorThread] now respects vibration policy change during ringing
[RingtoneThread] moved ringtone playing into its own handler based thread
[RingtoneThread] if ringtone is shorter than 2 seconds its repeat is delayed