Update travis to compile also with jdk9
Update travis to compile also with jdk9
TDesjardins/gwt-ol3,sebasbaumh/gwt-ol3,sebasbaumh/gwt-ol3,sebasbaumh/gwt-ol3,TDesjardins/gwt-ol3,TDesjardins/GWT-OL3-Playground,TDesjardins/gwt-ol3,TDesjardins/GWT-OL3-Playground,TDesjardins/GWT-OL3-Playground