3032 improve packaging error reporting
Created by: jcfr
This topic updates the build system:
- address #3032 ensuring Slicer application packaging errors are reported on the dashboard
- update dashboard driver scripts to provide better feedback regarding the build context (it displays variable in friendly way)
I would like to also get your feedback regarding f18100da5da10b9, was this (undocumented) way of building extensions used ?
For reference, documentation to build an extensions index is here