added test suite runner, removed tests from travis build

src/js/utils/Xhr.js

@@ -0,0 +1,46 @@
+(function () {
+  var ns = $.namespace('pskl.utils');
+  ns.Xhr = {
+    get : function (url, success, error) {
+      var xhr = ns.Xhr.xhr_(url, 'GET', success, error);
+      xhr.send();
+    },
+
+    post : function (url, data, success, error) {
+      var xhr = ns.Xhr.xhr_(url, 'POST', success, error);
+      var formData = new FormData();
+
+      if (typeof data == 'object') {
+        for (var key in data) {
+          if (data.hasOwnProperty(key)) {
+            formData.append(key, data[key]);
+          }
+        }
+      }
+
+      xhr.send(formData);
+    },
+
+    xhr_ : function (url, method, success, error) {
+      success = success || function (){};
+      error = error || function (){};
+
+      var xhr = new XMLHttpRequest();
+      xhr.open(method, url, true);
+
+      xhr.onload = function(e) {
+        if (this.status == 200) {
+          success(this);
+        } else {
+          this.onerror(this, e);
+        }
+      };
+
+      xhr.onerror = function(e) {
+        error(e);
+      };
+
+      return xhr;
+    }
+  };
+})();