WEBUI JS: EPG/status: Use alias cursor for clickable columns
WEBUI JS: EPG: Fix the clickable channel linking (autorec issue)
WEBUI JS: EPG: Do not show the clickable cursor and icon when filter is already set
dvr autorec: don't delete spawned recordings on shutdown

This stops the odd behaviour of alerting the user to new recordings that are
added on startup, that were previously in existance on shutdown.