Replaced jasmine testing framework by mocha, expect.js and sinon

as discussed in #319

test/test-extensions.js

@@ -0,0 +1,24 @@
+function waitsFor(condition, message, timeout, callback) {
+  var timeWaiting = 0;
+
+  function inner() {
+    if (condition()) {
+      callback();
+      return;
+    }
+
+    if (timeWaiting >= timeout) {
+      throw new Error(message);
+    }
+
+    timeWaiting += 10;
+    setTimeout(inner, 10);
+  }
+
+  inner();
+}
+
+
+expect.Assertion.prototype.roughlyEqual = function(other, tol) {
+  return Math.abs(this.actual - other) <= tol;
+};