Track file group versioning & include version num in node versions

app/controllers/api/v1/File.controller.js

@@ -39,7 +39,7 @@ class File extends Controller {
             }
         }
 
-        await group.save()
+        await group.version_save(`Added to page "${page.Name}"`, req.user.id)
         req.user.allow(`files:${group.UUID}`)
         await req.user.save()
 
@@ -85,11 +85,12 @@ class File extends Controller {
         if ( !group ) return res.status(404).message('Invalid file group.').api({})
         // if ( !group.accessible_by(req.user) ) return req.security.deny()
 
+        let file_name = ''
         if ( req.uploads.uploaded_file ) {
             group.FileIds.push(req.uploads.uploaded_file.id)
         }
 
-        await group.save()
+        await group.version_save(`Added file${file_name ? ' "'+file_name+'"' : ''}`, req.user.id)
         return res.redirect(req.body.redirectTo ? req.body.redirectTo : '/')
     }