Add test case for recursive partial. If it weren't for complex.html

it could be neat and there'd be s/kids/children/ — Oh well.

examples/partial_recursion.html

@@ -1,4 +1,4 @@
 {{name}}
-{{#children}}
+{{#kids}}
   {{>partial}}
-{{/children}}
+{{/kids}}

examples/partial_recursion.js

@@ -1,6 +1,6 @@
 var partial_context = {
   name: '1',
-  children: [
+  kids: [
     {
       name: '1.1',
       children: [

examples/partial_recursion.txt

@@ -1,3 +1,3 @@
 1
 1.1
-1.1.1
+1.1.1