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
tree: 7327a1d8090cab9d8aa4efce1e426a3fc591d5b2
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/