Make the getCommandDescriptions method in MaMuT view public.

src/main/java/org/mastodon/mamut/MamutViews.java

@@ -102,7 +102,7 @@ public < T extends MamutViewI > MamutViewFactory< T > getFactory( final Class< T
 		return ( MamutViewFactory< T > ) factories.get( klass );
 	}
 
-	CommandDescriptionProvider getCommandDescriptions()
+	public CommandDescriptionProvider getCommandDescriptions()
 	{
 		return new CommandDescriptionProvider( KeyConfigScopes.MAMUT, KeyConfigContexts.MASTODON )
 		{