adding new files

- eventoptions: shows list with events
- venueoptions: shows list with venues
- 303.sql is needed for update
changed class hasTip to hasTooltip in case of hovering category (events-view,backend)
Altered calendar views

- merged category/venue/calendar into 1 view
- altered venue-filter (eventslist) as it will now look at a.locid
instead of l.id
- added updatefunction to script in case update 302-303