Type checking in inference doesn't work

[tdiethe]

The check on line:

MXFusion/mxfusion/inference/inference.py

Line 132 in 9e8e0a0

if not all(isinstance(d, type(d)) for d in data):

always evaluates to True. e.g. all(isinstance(d, type(d)) for d in [5, 6., 'blah'])