This is a plugin to enable reordering fields on the ArchivesSpace resource page.
Right now it's very crude - it consists of a single file Ruby view template file, which has to be manually edited to change the order of fields.
To install in ArchivesSpace, download the project, edit the file (public/views/records/resource.html.erb) and follow the directions here to install it, then restart ArchivesSpace.