The JSON colormap parser can now read from JSON files containing more than one...

See merge request !316

The JSON colormap parser can now read from JSON files containing more than one colormap. More fixes to the parsing of colormaps done.

In Windows the animation function/class was not being called, iren needed to be initialized

See merge request !315

Add transient hdf reader.py

See merge request !313

add example TransientHDFReader

See merge request !312

Added python code for ReadDICOMSeries.cxx

See merge request !310

Added python example for ReadDICOM.cxx

See merge request !308

this addresses #308

1. Modified the imports
2.Background to SlateGray
3.default size to default
4.modified the arg parse help

Adding the GradientBackground example

See merge request !307

Initial commit

See merge request !306

Utilities: Update OffScreenRendering for modern VTK versions

See merge request !305

`vtkImagingFactory` was removed in VTK version 6, but this example runs
just fine with any reference to that class removed.