am d6a85a21: Merge "Support user-supplied timescales for authoring" into gingerbread

Merge commit 'd6a85a21418338a7797bff731fa7a551f62a9e86' into gingerbread-plus-aosp

* commit 'd6a85a21418338a7797bff731fa7a551f62a9e86':
  Support user-supplied timescales for authoring