ContextCreationTest: add MainService to the mix

Author: ctrueden

src/test/java/org/scijava/ContextCreationTest.java

@@ -97,6 +97,7 @@ public void testFull() {
 				org.scijava.io.DefaultDataHandleService.class,
 				org.scijava.io.DefaultIOService.class,
 				org.scijava.io.DefaultRecentFileService.class,
+				org.scijava.main.DefaultMainService.class,
 				org.scijava.menu.DefaultMenuService.class,
 				org.scijava.module.DefaultModuleService.class,
 				org.scijava.object.DefaultObjectService.class,