Handle read only access to cache dir gracefully. minor cleanup

cps.py

@@ -44,7 +44,7 @@ from cps.editbooks import editbook
 from cps.remotelogin import remotelogin
 from cps.search_metadata import meta
 from cps.error_handler import init_errorhandler
-from cps.schedule import register_jobs
+from cps.schedule import register_jobs, register_startup_jobs
 
 try:
     from cps.kobo import kobo, get_kobo_activated
@@ -83,6 +83,7 @@ def main():
 
     # Register scheduled jobs
     register_jobs()
+    # register_startup_jobs()
 
     success = web_server.start()
     sys.exit(0 if success else 1)