v1.3.0

Version 1.3.0 is here with new features.

• Average streamline trajectory accros a fiber bunble can now be computed
  
• This trajectory can be used to create smaller sections of a tract along its pathway
  
• And compute metrics
  

What's Changed

• New features by @DelinteNicolas in #45

Full Changelog: v1.2.11...v1.3.0