Fixed errors in MATLAB client and updated tests.

TestScripts/MATLAB Tests/getDREFsTest.m

@@ -0,0 +1,17 @@
+function getDREFsTest(  )
+%SENDREADTEST Summary of this function goes here
+%   Detailed explanation goes here
+addpath('../../MATLAB')
+import XPlaneConnect.*
+
+DREFS = {'sim/cockpit/switches/gear_handle_status',...
+    'sim/cockpit2/switches/panel_brightness_ratio'};
+
+result = getDREFs(DREFS);
+
+assert(isequal(length(result),2));
+assert(isequal(length(result{1}),1));
+assert(isequal(length(result{2}),4));
+
+end
+