Log Message:
Update to monotone-viz-1.0.1.  Significant improvements:  no longer
accesses the database directly:  instead, it uses mtn annotate.  Also,
some compile fixes for "various systems" (says the ChangeLog).

While here, change the distfile to the one without the included
lablgtk, as we don't use it.  Also, install the style example
into ${EGDIR}.