EsotericSoftware/spine-runtimes — pull request #269 by clofresh (2014-08-15 22:16:15+00:00)
Title: add yDown param to Bones

provides a cleaner way to handle runtimes with flipped y axis, like LOVE and Corona.
See http://esotericsoftware.com/forum/viewtopic.php?f=9&t=3153