Use headleass project model instead of normal project model in FitEll…

…ipsoidPluginTest

src/test/java/org/mastodon/mamut/fitting/FitEllipsoidPluginTest.java

@@ -56,7 +56,7 @@ public void testFitEllipsoidPlugin() {
 		final ArtificialData data = new ArtificialData( new Context() );
 		final StopWatch watch = StopWatch.createAndStart();
 		final FitEllipsoidPlugin plugin = new FitEllipsoidPlugin();
-		plugin.setAppPluginModel( data.getAppModel() );
+		plugin.setHeadlessProjectModel( data.getHeadlessProjectModel() );
 		plugin.fitSelectedVertices();
 		System.out.println( watch );
 		final int success = countCorrectEllipsoids( data );