inveniocfg: pre-load WSGI daemon processes
inveniocfg: pre-load WSGI daemon processes

* Pre-load WSGI daemon processes in order to speed-up application
  startup reactivity.

* Increase WSGI daemon inactivity timeout to a day in order to diminish
  application restarts.

inveniosoftware/invenio,inveniosoftware/invenio,tiborsimko/invenio,tiborsimko/invenio