mapping ranks
Since v1.2.0:
- Improvements in MSGA allow construction of the GA4GH bakeoff regions (however, problems with alignment are breaking the paths that are included).
- Mappings now include ranks, so that it's easy to obtain subsets of paths and merge subsets of graphs without needing to keep the entire path around.
- Better validation of paths by using ranks on mappings.
The changes in format necessitated changes in xg, and any indexes from older versions will be invalidated with this update.