#5539 Allow inter-neighborhood artifact linking
Currently supported artifact link formats:
[artifact_id] [tool_mount_point:artifact_id] [project_shortname:tool_mount_point:artifact_id]
Add this:
[neighborhood_url_prefix:project_shortname:tool_mount_point:artifact_id]
So, for example:
[p:allura:tickets:#1]
Most, if not all, of the changes will go in:
Allura/allura/model/index.py -> Shortlink._parse_link()