Fixed latex export for svg data in python 3#985

Merged

MSeal merged 3 commits intojupyter:masterfrom MSeal:py3LatexSVGFix

Apr 14, 2019

+547-23

Commits on Apr 7, 2019

Fixed latex export for svg data in python 3
MSeal
committed

Commits on Apr 13, 2019

Fixed binary data conversion to not try converting non-json data
MSeal
committed

Commits on Apr 14, 2019

Applied PR feedback to be less strict in extractoutput
MSeal
committed