Who is going to the HBM in 2015? Should we contribute to a workshop? (Robert)

http://bugzilla.fieldtriptoolbox.org/show_bug.cgi?id=2090 (Robert)

discussed: interactive steps in the tutorials may benefit from video/gifs explaining more clearly what the user is supposed to be doing/seeing. People often get stuck here. Also, consider introducing some expected dwell-time in these sections.