Merge changes I0c25e038,I33a8fb4e,I2c9cbbbd,If4c9711e,I4b00c0df, ...

* changes:
  liblog: Move liblog tag from 1005 to 1006
  system/core Replace log/log.h with android/log.h
  system/core Replace cutils/log.h with android/log.h
  logd: logcat: Replace log/log.h with android/log.h
  libcutils: Replace cutils/log.h with android/log.h
  liblog: Replace log/log.h with android/log.h
  liblog: logcat: Replace log/logd.h with log/log.h
  liblog: logd: logcat: deprecate log/log_read.h
  liblog: Add C++ wrapper for C event log handler