Make super dev mode run more reliable

Change-Id: I77b9324c90b51400635e2a55ff47f72bf8125806

client-compiled/pom.xml

@@ -88,11 +88,12 @@
 				<artifactId>vaadin-maven-plugin</artifactId>
 				<configuration>
 					<modules>
-						<module>com.vaadin.DefaultWidgetSet</module>
+						<module>${widgetset.name}</module>
 					</modules>
 					<webappDirectory>${project.build.outputDirectory}/VAADIN/widgetsets</webappDirectory>
 					<persistentunitcachedir>${project.build.directory}/gwt-unitCache</persistentunitcachedir>
 					<style>${widgetset.style}</style>
+					<extraJvmArgs>-Xmx1G</extraJvmArgs>
 				</configuration>
 				<executions>
 					<execution>