am 4bd6c862: am 3556305e: Merge "docs: hide the "back to top" link when there\'s no vertical scroll also use local variables for DOM objects (in a slow effort to eventually remove all non-essential global vars)" into eclair

Merge commit '4bd6c862f0897f99abc227611822e1dace03b6e0'

* commit '4bd6c862f0897f99abc227611822e1dace03b6e0':
  docs: hide the "back to top" link when there's no vertical scroll
tree: d2e55053e5a74b3d380c8a47980e89e6bf082305
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh