Include version '2.0.0-wakari'

Exception when running bokeh magic extension in Wakari:

Exception: This version of IPython is not currently supported.
Currently supported version are: 1.0.0, 1.1.1, 1.1.2, 1.2.0, 1.2.1 and 2.0.0-dev, 2.0.0-b1, 2.0.0, 2.1.0, 3.0.0-dev.

Added version '2.0.0-wakari' to the list