Update README information about GWT SDK and gwt-dev-tools.
Update README information about GWT SDK and gwt-dev-tools.
briandealwis/gwt-eclipse-plugin,briandealwis/gwt-eclipse-plugin,gwt-plugins/gwt-eclipse-plugin,gwt-plugins/gwt-eclipse-plugin,gwt-plugins/gwt-eclipse-plugin,briandealwis/gwt-eclipse-plugin