commit 27f214ac
Author: Paul McCarthy <pauld.mccarthy@gmail.com>
Date:   Wed Apr 26 18:20:08 2017 +0100

    Version bump

commit 52f759f0
Author: Paul McCarthy <pauld.mccarthy@gmail.com>
Date:   Wed Apr 26 18:05:11 2017 +0100

    More robust unit tests for async.idle(alwaysQueue=True). Also using a single
    wx.App object for complex reasons

commit d87aae89
Author: Paul McCarthy <pauld.mccarthy@gmail.com>
Date:   Wed Apr 26 18:00:13 2017 +0100

    Adjustment to async.idle(alwaysQueue=True) - now, a second idle call is only
    necessary if the first call came before a wx.App had been created.

lock up (as thousands of TaskThreads were being created, and not destroyed)

block until queue is empty. ImageWrapper has method to access TaskThread. This
is primarily used for testing threaded access to ImageWrapper.

which is primarily for testing.

identifying reference image associated with a FIRST vtk file.

immediatelly re-run the idle loop.

initialisation. Async.idle still honours after argument, even if a
wx application is not running.

Platform.canHaveGui, can be used to tell whether we are able to create a
GUI. Async modified to use platform.haveGui instead of performing its
own test.

already queued to be dropped. More useful when used through idleWhen.

events (if user stops moving the mouse), meaning that idle tasks can get
stuck in the idle queue, and not processed until the next UI
event. Therefore, the idle loop now gets periodically called by a
wx.Timer, in addition to via EVT_IDLE events.

dictate when the actual function is called.

keyword arguments.

TaskThread also doesn't crash when an enqueued task raises an error.

  - New cache module, which implements a simple in-memory cache.
  - Async module defines a 'mutex' decorator, which allows instance
    method access to be made mutually-exclusive

a new thread.

2. ImageWrapper marks its expand coverage task thread as a daemon.

be executed.

duplicating functionality provided by the props.callqueue module.

error.

runnign under GTK/SSH/X11.

GLSLShader.loadAtts before setting the vertex attribute divisor. Other
associated changes to initial refresh - it now occurs after all
eigenvector/value textures are ready.

schedule a 'create' function (to create a GLObject), as it was never
able to capture the GL context.

state until image textures are ready to be used. New async.wait function
to help with this.

running. GLModel has to implement GLObject.ready() method.

via a new function async.idle (which abstracts away wx-iness). This
means that the status-bar is actually updated during startup.

uses this to prepare texture data, and GLObjects query ImageTextures to
make sure that they are ready - they are not drawn until textures are
ready. I have discovered that all my changes to prefilter were useless -
rgbvector/tensor vector texture is currently broken.