A quoted search is a term or phrase between quotation marks; there is no
escaping of quotation marks. A quoted phrase is searched as-is (but ignoring
casing).

The quote must be between quotation marks; there is no escaping of quotation
marks.

We now search multiple terms, and allow special keywords "before:" and
"after:" to time-bound searches.

This way, newer events appear before older events. The photographs inside
every event remain in normal order.

Instead of a different color for highlighted items, we use an icon like with
locked (private) items. It looks better and is cleaner.

This works for Apache, writing .htaccess files on the albums of the private
photos. This is not particularlly fast (nor clean); but it works.