Merge "new doc about shrinking code and resources (massive re-write of...

Merge "new doc about shrinking code and resources (massive re-write of proguard doc). bug: 27746083" into mnc-mr-docs am: 01d3063f am: 7ceca13f
am: 71ecff1a

* commit '71ecff1a':
  new doc about shrinking code and resources (massive re-write of proguard doc). bug: 27746083

Change-Id: Ie57e24a2e3c31555c89bbb3b7732ca2a146be94c