update ipython notebook runner to accomodate specific usages of matplotlib (i.e. import matplotlib.pyplot as plt) and ipython magic functions (ignore them) within the demo testing framework.
update ipython notebook runner to accomodate specific usages of matplotlib (i.e. import matplotlib.pyplot as plt) and ipython magic functions (ignore them) within the demo testing framework.

h2oai/h2o-dev,brightchen/h2o-3,madmax983/h2o-3,YzPaul3/h2o-3,h2oai/h2o-dev,h2oai/h2o-dev,spennihana/h2o-3,michalkurka/h2o-3,tarasane/h2o-3,spennihana/h2o-3,mathemage/h2o-3,brightchen/h2o-3,YzPaul3/h2o-3,kyoren/https-github.com-h2oai-h2o-3,madmax983/h2o-3,madmax983/h2o-3,h2oai/h2o-dev,YzPaul3/h2o-3,mathemage/h2o-3,kyoren/https-github.com-h2oai-h2o-3,mathemage/h2o-3,printedheart/h2o-3,pchmieli/h2o-3,YzPaul3/h2o-3,kyoren/https-github.com-h2oai-h2o-3,jangorecki/h2o-3,pchmieli/h2o-3,h2oai/h2o-3,brightchen/h2o-3,mathemage/h2o-3,madmax983/h2o-3,h2oai/h2o-dev,brightchen/h2o-3,jangorecki/h2o-3,jangorecki/h2o-3,junwucs/h2o-3,spennihana/h2o-3,jangorecki/h2o-3,printedheart/h2o-3,h2oai/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,h2oai/h2o-3,junwucs/h2o-3,brightchen/h2o-3,YzPaul3/h2o-3,datachand/h2o-3,YzPaul3/h2o-3,h2oai/h2o-3,printedheart/h2o-3,madmax983/h2o-3,pchmieli/h2o-3,brightchen/h2o-3,tarasane/h2o-3,datachand/h2o-3,datachand/h2o-3,kyoren/https-github.com-h2oai-h2o-3,tarasane/h2o-3,pchmieli/h2o-3,tarasane/h2o-3,spennihana/h2o-3,kyoren/https-github.com-h2oai-h2o-3,datachand/h2o-3,kyoren/https-github.com-h2oai-h2o-3,michalkurka/h2o-3,spennihana/h2o-3,michalkurka/h2o-3,michalkurka/h2o-3,tarasane/h2o-3,mathemage/h2o-3,michalkurka/h2o-3,h2oai/h2o-3,junwucs/h2o-3,YzPaul3/h2o-3,junwucs/h2o-3,jangorecki/h2o-3,h2oai/h2o-3,junwucs/h2o-3,h2oai/h2o-dev,datachand/h2o-3,spennihana/h2o-3,printedheart/h2o-3,mathemage/h2o-3,madmax983/h2o-3,kyoren/https-github.com-h2oai-h2o-3,datachand/h2o-3,jangorecki/h2o-3,tarasane/h2o-3,h2oai/h2o-3,junwucs/h2o-3,madmax983/h2o-3,mathemage/h2o-3,junwucs/h2o-3,pchmieli/h2o-3,h2oai/h2o-dev,brightchen/h2o-3,tarasane/h2o-3,datachand/h2o-3,jangorecki/h2o-3,printedheart/h2o-3,pchmieli/h2o-3,spennihana/h2o-3,printedheart/h2o-3,pchmieli/h2o-3,michalkurka/h2o-3,printedheart/h2o-3