Make MATLAB UI displayed by default

If the UI isn't shown by default, it's probably going to be very
confusing and appear as though nothing is really happening.

Author: hinerm

src/main/java/org/scijava/plugins/scripting/matlab/MATLABOptions.java

@@ -64,7 +64,7 @@ public class MATLABOptions extends OptionsPlugin
 	// Fields
 
 	@Parameter(label = "Hide MATLAB UI")
-	private boolean hidden = true;
+	private boolean hidden = false;
 
 	@Parameter(label = "Allow multithreaded MATLAB")
 	private boolean multithreaded = true;