Improve layout of Appearance > Header with flexible-height headers added
|Reported by:||mbijon||Owned by:||nacin|
Support for flexible-height header images was added in #17242. In that ticket @aaroncampbell suggested we use Masonry to improve the layout of the Headers layout, http://core.trac.wordpress.org/ticket/17242#comment:63.
His patch applying Masonry to that page was then added in , but @nacin found a bugs where the header images would overlap when Masonry was enabled, http://core.trac.wordpress.org/ticket/17242#comment:68. Masonry was then disabled in  and removed entirely in .
This ticket is to reintroduce Aaron's patch with Masonry, http://core.trac.wordpress.org/attachment/ticket/17242/17242.masonry.2.diff, and debug the overlapping images @nacin found. Or, create a different method for doing the same thing.