Made a couple more adjustments, now the function builds the
transformation matrix (sans the translation) directly from the five
inputs. After realizing that it may be necessary for the new location
class to publish a world up vector, comments were added indicating
which values constitute world up.
This should fix it. The problem wasn't the rotations but a difference in
the translations. Note that this fix also puts the wheels back on top of the
pavement when in external view.
