New n-dimensional scatter plot example with GPU-based smooth projections.
Added datasets package with load_iris() function.
Minor simplication in OrthogonalPath.
Added example showing how to plot a 2D function y=f(x,y) on the GPU in real time.
Initial version of the ray tracing example, with a single sphere.
Changed variable names.
Added plane, reflections, shadows.
Added other sphere and animation.
Some cleanup.
Flakify.
Flakify.
Added datasets to setup.py and to coverage's ignore file.
Removed import * syntax in datasets.
Merge pull request #391 from rossant/ndscatter-example

New n-dimensional scatter plot example with GPU-based smooth projections
Merge pull request #406 from rossant/gpuimage-example

Added example showing how to plot a 2D function y=f(x,y) on the GPU
Merge pull request #409 from rossant/raytracing-example

Real-time GPU-based ray tracing example