euslisp/jskeus — pull request #63 by snozawa (2014-03-21 11:39:03+00:00)
Title: add argument to specify axis for angular momentum jacobian

Add argument to specify axis for angular momentum jacobian.
Calculate COG around angular momentum by default.
I did not use default argument such as
```
(axis-for-angular (send self :centroid nil))
```
because COG position will be calculated later (within this method).