pcb pcb-4.1.0

Release notes for pcb-4.1.0

Dear Users,

This release introduces a file format change.

This is required by the added Blind and Buried Via capabilities of pcb.

Kind regards,

The pcb development team

Contributors
------------
The following authors contributed to the 4.1.0 release:
- Charles Parker
- Mike Crowe
- Andrew Armenia
- Bdale Garbee
- Keith Packard
- DJ Delorie
- Jan Damborsky
- Ahmed El-Mahmoudy
- Bert Timmerman

Please note that names are in no particular order and all e-mail
addresses have been removed for privacy.

User experience improvements
----------------------------
- the blind and buried via feature is introduced.
- removed the deprecated mimelnk files.
- added a releases section to the appdata.
- corrections in the User Manual.
- reordered the exporter options in the User manual.
- better front matter and copyrights for the User Manual.
- splitted the Installation and Troubleshooting appendix in the User
  Manual.
- correction in desktop integration name and comment.
- when writing a pcb file, write arc angles with decimal places.
- added the "Development" category in the desktop integration.

Plugins
-------
- none

Exporters
---------
- gsvit exporter added.

Footprints library
------------------
- several Nichicon radial capacitor footprints were added to the pcblib.

Developer experience improvements
---------------------------------
- some more doxygenation of source code files.
- added regression tests for the Nelma exporter.

Notes for early adapters
------------------------
- none

Changed dependencies
--------------------
- none