displayed with the bottom left voxel at display location (0, 0). This
means that calculating voxel location from display coordinates is
different depending on the space that the image is displayed in. I think
I've figured out the location panel, but need to double check, and need
to take a closer look at the editor.

couldn't be undone/redone. Fill+clear selection is now grouped into a
single change.

2. Profiles now support MouseEnter/MouseLeave events.

3. OrthoEditProfile reworked:
  -  Select mode no longer uses grid annotation, just a rectangle
  instead. These are 'held' on the annotations queue for each canvas.

  - If the view panel is running in low performance mode, only the
    source canvas is refreshed - this makes edit mode usable when
    running with a software GL renderer.

a boolean toggle - if off, mouse dragging just moves the seed voxel.

OrthoProfileToolbar (stiil hasn't been renamed) updated to support this
behaviour.

ortho profile toolbar.

Revamping ortho profile toolbar (which will be renamed to ortho edit
toolbar) - new icons and layouts.

I'm not happy with the edit profile behaviour, so am going to refactor
that soon too.

Bugfix to histgram panel (caused by changes to ViewPanel.togglePanel).

Bugfix to VectorOpts (removing listener  on overlay instead of display).

ActionButton class type is now optional, and argument order has changed.

GLImageObject now calls onUpdate whenever image data changes -
SliceCanvases were not being reset when images edited.

OrthoEditProfile explicitly calls Refresh on the OrthoPanel when various
things happen.

control over tool layouts - not finished yet. Toolbar can no longer add
labels - it is the responsibility of the user to provide labelled
tools. Toolbar does have a utility method to label a tool though.

Little bugfixes to atlas panel and colour bar panel.

NaNs. TimeSeriesPanel uses the same (random) colour for unselected
overlays. It's a bit dodgy, I will refactor it some time in the future.

toolbar labels.

interface (e.g. iconify) before actually applying them.

fixed.

Profile event handlers were refreshing view panels after every event,
resulting in redundant SliceCanvas draws. This has been removed, but
will probably bite me later on.

fit was not being created immediately, as its creation was triggered
by a property change, and was hence being queued on the callqueue.

inefficient. Showing the user a dialog for the time being; will make
codez run better some time in the future.

shown by default on TimeSeriesPanel for FEAT images.

GLObject.getDataResolution

key on the command line.

without code breakin.

inserted into the list before the primary overlay. Associated fix to
overlay order sync logic.

screenshot taken.

info panel is right.

a call-out to render.py. A bit complicated, but much faster.

Small bugfix in OverlayDisplayPanel

fix in editor.