Fixed surefire on travis build.
Fixed surefire on travis build.

guibertjulien/gwt-material,GwtMaterialDesign/gwt-material,marcrh/gwt-material,marcrh/gwt-material,guibertjulien/gwt-material,GwtMaterialDesign/gwt-material,GwtMaterialDesign/gwt-material,guibertjulien/gwt-material,marcrh/gwt-material