Caged/d3-tip — pull request #4 by kbroman (2012-06-22 07:40:15+00:00)
Title: Fix alignment for left position

I think this fixes most of [Issue 1](https://github.com/Caged/d3-tip/issues/1), but note [my additional comment](https://github.com/Caged/d3-tip/issues/1#issuecomment-6502156) about the stem when the tip faces the left vs right.

Note that I also fixed the vertical position of left/right tips when the target is a rectangle.