added core function for new notifcation method, including test script

test/test_notification.m

@@ -0,0 +1,74 @@
+function test_notification
+
+% WALLTIME 00:10:00
+% MEM 1gb
+
+% TEST ft_debug ft_info ft_notice ft_warning ft_notification
+
+sublevel(@ft_debug)
+sublevel(@ft_info)
+sublevel(@ft_notice)
+sublevel(@ft_warning)
+% sublevel(@ft_error)
+
+function sublevel(notice)
+
+fprintf('========================================\n')
+fprintf('the following should not print anything\n')
+fprintf('========================================\n')
+notice('off', 'FieldTrip:something');
+notice('FieldTrip:something', 'notice %d %d %d\n', 1, 2, 3);
+
+fprintf('========================================\n')
+fprintf('the following should print the query status\n')
+fprintf('========================================\n')
+notice('query', 'FieldTrip:something');
+
+fprintf('========================================\n')
+fprintf('the following should print "notice 4, 5, 6"\n')
+fprintf('========================================\n')
+notice('on', 'FieldTrip:something');
+notice('FieldTrip:something', 'notice %d, %d, %d\n', 4, 5, 6);
+
+fprintf('========================================\n')
+fprintf('the following should print "notice backtrace" with a backtrace\n')
+fprintf('========================================\n')
+notice('on', 'backtrace');
+notice('FieldTrip:something', 'notice backtrace\n');
+notice('off', 'backtrace');
+
+fprintf('========================================\n')
+fprintf('the following should print "pause 1", "4"\n')
+fprintf('========================================\n')
+notice('once', 'FieldTrip:once');
+notice('timeout', 3);
+for i=1:5
+  pause(1);
+  notice('FieldTrip:once', 'pause %d\n', i);
+end
+
+notice('clear')
+notice('on', '1')
+notice('on', '2')
+notice('off', 'a')
+notice('off', 'b')
+fprintf('========================================\n')
+fprintf('the following should show 1 and 2 as ''on''\n')
+fprintf('========================================\n')
+notice('off')
+notice('query')
+fprintf('========================================\n')
+fprintf('the following should show a and b as ''off''\n')
+fprintf('========================================\n')
+notice('on')
+notice('query')
+
+notice('clear')
+fprintf('========================================\n')
+fprintf('the following should show ''a''\n')
+fprintf('========================================\n')
+notice('a');
+notice('last')
+
+
+