Merge pull request madrobby#282 from elsigh/zepto

---

Conflicts:
	README.rdoc

README.md

@@ -285,6 +285,7 @@ $.ajax({
   url: '/foo', // defaults to window.location
   data: {name: 'Zepto'}, // can be a string, object or result of serializeArray()
   dataType: 'json', // what response type you accept from the server ('json', 'xml', 'html', or 'text')
+  async: true, // set async flag (true by default)
   success: function(body) { ... }, // body is a string (or if dataType is 'json', a parsed JSON object)
   error: function(xhr, type) { ... } // type is a string ('error' for HTTP errors, 'parsererror' for invalid JSON)
 })

src/ajax.js

@@ -253,7 +253,8 @@
       }
     };
 
-    xhr.open(settings.type, settings.url, true);
+    var async = 'async' in settings ? settings.async : true;
+    xhr.open(settings.type, settings.url, async);
 
     if (settings.contentType) settings.headers['Content-Type'] = settings.contentType;
     for (name in settings.headers) xhr.setRequestHeader(name, settings.headers[name]);

test/ajax.html

@@ -166,9 +166,10 @@ <h1>Zepto Ajax unit tests</h1>
       MockXHR.last = this;
     }
     MockXHR.prototype = {
-      open: function(method, url) {
+      open: function(method, url, async) {
         this.method = method;
         this.url = url;
+        this.async = async;
       },
       setRequestHeader: function(name, value) {
         this.headers.push({ name: name, value: value });
@@ -486,6 +487,16 @@ <h1>Zepto Ajax unit tests</h1>
             t.assertEqual('timeout', status);
           });
         }, 40);
+      },
+
+      testAsyncDefaultsToTrue: function(t) {
+        $.ajax({ url: '/foo' });
+        t.assertTrue(MockXHR.last.async);
+      },
+
+      testAsyncFalse: function(t) {
+        $.ajax({ url: '/foo', async: false });
+        t.assertFalse(MockXHR.last.async);
       }
     });