Blender Git Loki

Origin button in the toolshelf

Minipatch to add the Origin button in the Toolshelf in the Transform section.
I missed this because
1) it was called "center" in 2.4 and it's difficult to find just searching if you don't know it's "origin"
2) it was in the the object » transform menu, not very practical to use often
Discussed with Gensher, Campbell and Matt before committing :)