settings-form: removed option to display link to venue-view for venueview-settings

it doesn't make sense as that setting is called within the venue-view.
removed a double dl from event/venue(s)-view, FIX #90
eventslist-view: altered variable $pagetitle

it was calling COM_JEM_EVENTS but instead we have to call that string by
using JTEXT so it's been altered.