Revert "Remove current events in favor of greeting."

This reverts commit 1bf28cc0f2153f35edd3635c2033d56f2a05e384. It was made as a
last-minute change to prepare for the senior project presentation. The commit
hid the unfinished "Current Events" page. Now that ELTS has been presented,
there is little need to create hacks that hide unfinished portions of the
application.