Changes

tsk93 Adds searching with location capabilities
Modifies EventEJB and EventSearchController so that a location parameter
may be added to the search criteria.
Modifies EventEJB and EventSearchController so that the search functions
return events ordered by physical proximity, date, and number of
attendees.
Adds a picklist of Capital cities to templateHeader.xhtml in order to
add a location to the search criteria.
Adds the location GET parameter to the Next and Prev buttons of
searchResults.xhtml, to preserve the location previously chosen.