[ci] test windows ci

Author: fangq

base64decode.m

@@ -34,9 +34,10 @@
     output = zmat(varargin{1}, 0, 'base64');
     return
 elseif (isoctavemesh)
-    try
+    which('matlab.net.base64decode');
+    if (~isempty(which('matlab.net.base64decode')))
         output = matlab.net.base64decode(varargin{1});
-    catch
+    else
         error('You must install the ZMat toolbox (http://github.com/NeuroJSON/zmat) to use this function in Octave');
     end
 end