Use jekyll-sitemap instead of our custom solution.

Gemfile

@@ -6,6 +6,7 @@ source 'https://rubygems.org'
 group :development, :test do
   gem 'jekyll', '~> 2.5.3'
   gem 'jekyll-redirect-from', '~> 0.8.0'
+  gem 'jekyll-sitemap', '~> 0.8.1'
   gem 'rouge', '~> 1.9.1'
   gem 'sass', '~> 3.4.18'
   gem 'scss_lint', '~> 0.41'

Gemfile.lock

@@ -38,6 +38,7 @@ GEM
       jekyll (>= 2.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
+    jekyll-sitemap (0.8.1)
     jekyll-watch (1.2.1)
       listen (~> 2.7)
     kramdown (1.8.0)
@@ -76,6 +77,7 @@ PLATFORMS
 DEPENDENCIES
   jekyll (~> 2.5.3)
   jekyll-redirect-from (~> 0.8.0)
+  jekyll-sitemap (~> 0.8.1)
   rouge (~> 1.9.1)
   sass (~> 3.4.18)
   scss_lint (~> 0.41)

_config.yml

@@ -20,6 +20,7 @@ exclude:          [assets/scss/]
 
 gems:
   - jekyll-redirect-from
+  - jekyll-sitemap
 
 # Custom vars
 current_version:  4.0.0-alpha

docs/sitemap.xml

@@ -1,23 +0,0 @@
----
----
-
-
-<?xml version="1.0" encoding="UTF-8"?>
-<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
-  <url>
-    <loc>{{ site.url }}/</loc>
-    <lastmod>{{ site.time | date_to_xmlschema }}</lastmod>
-    <changefreq>daily</changefreq>
-    <priority>1.0</priority>
-  </url>
-  {% for page in site.html_pages %}
-  {% if page.layout != "home" %}
-  <url>
-    <loc>{{ site.url }}{{ page.url }}</loc>
-    <lastmod>{{ site.time | date_to_xmlschema }}</lastmod>
-    <changefreq>weekly</changefreq>
-    <priority>0.7</priority>
-  </url>
-  {% endif %}
-  {% endfor %}
-</urlset>