* commit 'cccf85c287aea85121b15280bf3a89a2b7d3926b': This restores JB MR0 behavior where the framework throws an exception for improper layouts that are missing layout_width and/or layout_height.
* commit 'cccf85c287aea85121b15280bf3a89a2b7d3926b': This restores JB MR0 behavior where the framework throws an exception for improper layouts that are missing layout_width and/or layout_height.