Add spec for nesting the same name (issue #148)

spec/_files/nesting_same_name.js

@@ -0,0 +1,8 @@
+var nesting_same_name = {
+  items: [
+    {
+      name: 'name',
+      items: [1, 2, 3, 4]
+    }
+  ]
+};

spec/_files/nesting_same_name.mustache

@@ -0,0 +1 @@
+{{#items}}{{name}}{{#items}}{{.}}{{/items}}{{/items}}

spec/_files/nesting_same_name.txt

@@ -0,0 +1 @@
+name1234