go to a particular slide.
Take a screenshot
+
+Allow placement:
+
+ 0010L-hello.html +-----------+-----------+
+ 0010R-hello.html | | |
+ | L | R |
+ | | |
+ +-----------+-----------+
+
+similarly 'A' (above) and 'B' (below).
+
+Allow placement across monitors.
+
+Allow talk notes to be placed permanently on one monitor (is this
+useful though? speaker could just open an editor with the notes
+separately).
+
+Fix Gtk2::Embed so it doesn't keep crashing and so we can
+run everything in a single process.