Merge "new doc about shrinking code and resources (massive re-write of proguard doc). bug: 27746083" into mnc-mr-docs
am: 01d3063

* commit '01d3063f885f3937038cc4308f4f9ab429b9e77a':
  new doc about shrinking code and resources (massive re-write of proguard doc). bug: 27746083

Change-Id: I245ed0c501381ca5b71e8b5f8ed387b826533cb7