Please run "test_snctools.m".  These produce a lot of very verbose
output.  Don't be fooled by any of it, if any tests fail, you will
know.


In order to test java functionality with OPeNDAP, you should set
both of these preferences.

    >> setpref('SNCTOOLS','USE_JAVA',true);
    >> setpref('SNCTOOLS','TEST_OPENDAP',true);

In order to test OPeNDAP with mexnc, you should set
both of these preferences (this assumes you have an opendap-enabled
version of mexnc.

    >> setpref('SNCTOOLS','USE_JAVA',false);
    >> setpref('SNCTOOLS','TEST_OPENDAP',true);