sum. 'Current time course' settings only shown if current time course is
being shown. Other little changes.

design a bit. Partial model fits are not being calculated correctly.

method). This is really just for the 'current' time series, so that e.g.
FEAT settings will persist with location changes. On the topic of FEAT
settings, when the selected overlay is a FEATImage, a new settings group
appears in the TSControlPanel allowing the user to change FEAT settings
for the 'current' TS plot. Non-functional currently, but the GUI is
there.

stuff. Overlay load function auto-detects FEAT-like images and creates
FEATImage instances instead of Image instances where necessary.

group in HistogramControlPanel.

HistogramListPanel (if it exists) via a slightly convoluted process
involving the 'HistogramPanel.selectedSeries' property.

creating RGB array - this allows us to save as PDF/SVG/etc/etc.

initial histogram calculation.

in end-bins of histogram. Tweaks to histogram data to make it look
better (i.e. plot ends finish at y=0.0). PlotPanel.drawDataSeries
accepts arbitrary **kwargs which are passed through to the plt.plot
function (and used by the HistogramPanel to draw histograms as step
plots).

on the HistogramSeries class.

HistogramPanel nicer) at a later date.

HistogramListPanel

is done by subclasses. This is due to HistogramPanel.autoBin
complicatedness - the data series need to be refreshed before the plot
is refreshed.

PlotControlPanel, which is now embedded in the TimeSeriesControlPanel.

are not recalculated if they've already been calculated.

to time courses. Improved time series control panel layout too.

user to configure panel display. Need to fix axis limits in log scale
mode

views can now display different volumes of the same 4D image - nice!
GLVolume listens for sync changes on vol/res/etc properties - if
unsynced, a new, independent image texture is created. When synced back,
the independent texture is destroyed, and the original one re-acquired.
Need to update other GL types to do the same.

- I'm still not entirely happy with any of this code.

initialisation. Opts class patching for new colour maps/luts is now in
colourmaps module. New LUT option in LookupTablePanel is functional, but
am chasing down the fact that the LUT option is not refreshed
automatically when a new LUT is added.

sorted order.

notification of lut label updates. SliceCanvas/LightBoxCanvas now use
GLObject.addUpdateListener, rather than DisplayOpts.addGlobalListener -
this allows lut label updates to be propagated nicely, without some
ugly opts.lut listener registration hacks. WXGLSliceCanvas/LBCanvas
destroy methods updated accordingly, and also updated to destroy
globjects and offscreen/render textures.

colours, and to toggle labels on/off.

and (the new) RGBVectorOpts.  colourmaps.applyBricon function allows
rgba sequences to be passed in - alpha is unchanged.  GLLabel does not
perform edge detection along depth plane if in id/pixdim mode.

because the DC.bounds property cannot be unbound.

non-volumetric data. Need to test, and need to update render.py

be refactoring TimeSeriesPanel soon ...

support more data types, I can look at organising a class/name
hierarchy but, until then, Model will be fine. Bugfix to overlayselect
panel (name property callback now being passed Display instead of Image).