New alignments calculations.

These are clustered. Performance is better.

Labelled / Unlabelled / Undirected

MST        57.1 / 64.5 / 79.5
MST+VIS    58.2 / 66.0 / 80.8
MST+QG     58.1 / 65.1 / 79.5
MST+QG+VIS 58.8 / 66.2 / 80.4