modified runalltests to run on octave

Author: rasmusbergpalm

tests/runalltests.m

@@ -1,2 +1,8 @@
 clear all; close all; clc;
-runtests
+
+addpath(genpath('..'));
+dirlist = dir('./test_*');
+for i = 1:length(dirlist)
+    name = dirlist(i).name(1:end-2);
+    feval(name)
+end