Baseline: d55c11b6

Cherry picks:

   + 34c5ef22:
     make sure IdempotencyChecker use the correct rule transition and
     remove redundant computeTransition calls.
   + 32d018ea:
     Make targets in analysis completed events visible.

Incompatible changes:

  - The --apple_compiler command line option is not available anymore.
  - py_transitions top-level was removed.

Important changes:

  - Android resources will no longer propagate through neverlinked
    libraries by default.

This release contains contributions from many people at Google, as well as Alex Eagle, arun.sampathkumar, Benjamin Lee, Fabian Meumertzheim, Gunnar Wagenknecht, Julio Merino, Keith Smiley, Nicholas Junge.