Tweak proguard flags in the 2 files.

So all most commonly-used flags go to proguard_basic_keeps.flags
and they will still be applied when LOCAL_PROGUARD_ENABLED=nosystem.
Bug: 9203442

Change-Id: If018076dc625ac1efe31898b179dbba850218aaf
am 1dd9f19e: Merge "add renderscript to support library javadocs" into jb-mr2-dev

* commit '1dd9f19e8f020e691f08361668a1132181c267c5':
  add renderscript to support library javadocs
am 041fd816: (-s ours) Reconcile with jb-mr2-release - do not merge

* commit '041fd81699448ff4fbcabeebe15bb7dedade9dfb':
  "JWR60"
  JWR59C
  JWR59B
am 6c380fe5: am 1dd9f19e: Merge "add renderscript to support library javadocs" into jb-mr2-dev

* commit '6c380fe5da492c526f81c894a069e63ab62613de':
  add renderscript to support library javadocs
AAR59B
Merge "Tweak proguard flags in the 2 files."
AAR59C
merge in master-release history after reset to master
"AAR64"
improve OTA failure messages

Replace OTA script constructs of the form:

   assert(foo);

with

   foo || abort("sensible message");

so that the log and the on-screen display is somewhat more accessible
to non-experts.  (assert() displays the source code of the false
expression 'foo'.)

Change-Id: Ic99448e4466561d305b167cd4d5c1f0f2dbadcce
Reconcile with jb-mr2-release - do not merge

Change-Id: Ibaec6294f3598d965dba72d39859f24a76c8933b
am 20f6c310: (-s ours) Reconcile with jb-mr2-release - do not merge

* commit '20f6c310c70594e077310415b2756c9e1f42d6b5':
  "JWR64"
  "JWR63"
  JWR60E
  JWR60D
  JWR60C
  JWR60B
JWR64B
Reconcile with jb-mr2-release - do not merge

Change-Id: I1168e923d0907bf1888bc2f894f7addfb559ca61
am e2fe6c04: (-s ours) Reconcile with jb-mr2-release - do not merge

* commit 'e2fe6c041f65faf3279b663b4392f934b898a85b':
  JWR64B
merge in master-release history after reset to master
"AAR65"
Merge "improve OTA failure messages"
JWR65
Add proper deps for jarjar rules files.

Changes to the jarjar rules file for a module were not causing
rebuilds; add the missing dependency.

Change-Id: Ib78fa708681cbc414218fe84cc2c4282c619f45f