pagenav->pagination (admin side)

references of pagenav are changed from PageNav to pagination.
pagenav->pagination (siteview)

changed references from site view
Update default_layout.php

Legend of Venue column and State column was wrong!
Update view.html.php

'- disabled, only Admins -' '- Everybody -' and '- All registered users -' were hardcoded
now COM_JEM_ONLYADMINS, COM_JEM_EVERYBODY, COM_JEM_ALLREGISTERED
Changed occurances of Eventlist to JEM in variables and file names.