Upgrade grunt-fontello to fix building on node 12
Upgrade grunt-fontello to fix building on node 12

RafaelPalomar/girder,girder/girder,manthey/girder,manthey/girder,girder/girder,girder/girder,Kitware/girder,RafaelPalomar/girder,Kitware/girder,Kitware/girder,RafaelPalomar/girder,Kitware/girder,manthey/girder,girder/girder,manthey/girder,RafaelPalomar/girder,RafaelPalomar/girder