order jobs by descending order, more useful to see newest at top

job.py

@@ -89,7 +89,7 @@ def NewJob(name, num_files="0", wait_for=None ):
 @app.route("/jobs", methods=["GET"])
 def jobs():
     page_title='Job list'
-    jobs = Job.query.order_by(Job.id).all() 
+    jobs = Job.query.order_by(Job.id.desc()).all() 
     return render_template("jobs.html", jobs=jobs, page_title=page_title)