* commit 'ef512f03e3a10b39e82c9029d9d7623915ac8850': This restores JB MR0 behavior where the framework throws an exception for improper layouts that are missing layout_width and/or layout_height.
* commit 'ef512f03e3a10b39e82c9029d9d7623915ac8850': This restores JB MR0 behavior where the framework throws an exception for improper layouts that are missing layout_width and/or layout_height.