Feature: Remove cesnet_ prefix. (Redmine issue: #6800)

conf/mentat-cleanup.py.conf

conf/mentat-precache.py.conf

doc/sphinx/_doclib/database.rst

doc/sphinx/_doclib/hawat_plugin_timeline.rst

doc/sphinx/_doclib/upgrading.rst

lib/hawat/blueprints/timeline/__init__.py

lib/hawat/events.py

lib/mentat/idea/internal.py

lib/mentat/idea/sqldb.py

lib/mentat/idea/test_sqldb.py

lib/mentat/module/precache.py

lib/mentat/services/eventstorage.py

lib/mentat/services/test_eventstorage.py

scripts/mentat-check-alive.sh

scripts/mentat-check-inspectionerrors.sh

scripts/mentat-check-noeventclass.sh

scripts/mentat-check-test.sh

scripts/mentat-check-volatiledescription.sh

scripts/sqldb-optimize.sh