Merge pull request #11 from hikouki/master

Fix Arr::wrap.

Author: SmetDenis

src/Arr.php

@@ -430,7 +430,7 @@ public static function wrap($object)
     {
         if (is_null($object)) {
             return array();
-        } elseif (is_array($object)) {
+        } elseif (is_array($object) && !self::isAssoc($object)) {
             return $object;
         }
 

tests/ArrayTest.php

@@ -399,5 +399,6 @@ public function testWrap()
         is(array(), Arr::wrap(null));
         is(array(1, 2, 3), Arr::wrap(array(1, 2, 3)));
         is(array(0), Arr::wrap(0));
+        is(array(array('key' => 'value')), Arr::wrap(array('key' => 'value')));
     }
 }