TrackMate: DWIM swapped T/Z

When time and z are swapped, there is typically only one timepoint
(when there should be many). Detect the situation and ask the user
whether they wanted to swap the dimensions, but also offer them to
leave the dimensions as-are, or to cancel.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Fix tyop

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
TrackMate: clarify what is refreshed on the LoG panel

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
TrackMate: diameters > half the width/height don't make sense

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
TrackMate: always consume Q/E key events

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
TrackMate: fix compiler warnings in the SpotEditTool

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
fixup! TrackMate: diameters > half the width/height don't make sense
TrackMate: do not use custom canvas

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
TrackMate: fix a couple of compiler warnings

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
fixup! TrackMate: do not use custom canvas
Bump TrackMate version to next snapshot version

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>