Optimize all the search engines.

Add:
        static/img/favicon.ico
                -Add a favicon.

        static/(robots.txt, sitemap.xml)
                -Add search-engine files. `bitshift` is not yet registered with
                Google.

app.py

@@ -3,6 +3,7 @@ Module to contain all the project's Flask server plumbing.
 """
 
 import datetime
+import flask
 
 from json import dumps
 from flask import Flask, make_response, render_template, request
@@ -55,5 +56,11 @@ def about():
 def developers():
     return render_template("developers.html")
 
+@app.route("/robots.txt")
+@app.route("/sitemap.xml")
+@app.route("/favicon.ico")
+def static_from_root():
+    return flask.send_from_directory(app.static_folder, request.path[1:])
+
 if __name__ == "__main__":
     app.run(debug=True)

static/robots.txt

@@ -0,0 +1,3 @@
+User-agent: *
+Disallow: /search.json
+Sitemap: http://www.bitshift.it/sitemap.xml

static/sitemap.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+    <url>
+        <loc>http://bitshift.it/</loc>
+        <changefreq>monthly</changefreq>
+    </url> 
+    <url>
+        <loc>http://bitshift.it/about</loc>
+        <changefreq>monthly</changefreq>
+    </url>
+    <url>
+        <loc>http://bitshift.it/developers</loc>
+        <changefreq>monthly</changefreq>
+    </url>
+</urlset>

templates/layout.html

@@ -16,6 +16,7 @@
     <meta name="keywords" content="source code language search engine"/>
     <meta name="author" content="Benjamin Attal Ben Kurtovic Severyn Kozak"/>
 
+    <link rel="shortcut icon" href="static/img/favicon.ico">
     {{ assets.tag("main.css") }}
 
     = block head