Merge changes Ib441cecf,Ieb1bbe3d,I3e63e430,I531b4317,I8dd60545, ...

* changes:
  logcat: Add --wrap timeout
  logcat: Add low hanging fruit long arguments
  logcat: Add long arguments to logcat, support for pid filter
  liblog: Support for ANDROID_LOG_WRAP mode flag on reader
  logd: test wakeup on wrap timeout
  logd: wakeup on wrap or timeout