Use current version for download links

Fixes #19

libpathod/app.py

@@ -1,4 +1,6 @@
-import logging, pprint, cStringIO
+import logging
+import pprint
+import cStringIO
 from flask import Flask, jsonify, render_template, request, abort, make_response
 import version, language, utils
 from netlib import http_uastrings
@@ -39,7 +41,12 @@ def make_app(noapi):
     @app.route('/')
     @app.route('/index.html')
     def index():
-        return render("index.html", True, section="main")
+        return render(
+            "index.html",
+            True,
+            section="main",
+            version=version.VERSION
+        )
 
     @app.route('/download')
     @app.route('/download.html')

libpathod/templates/index.html

@@ -56,7 +56,7 @@
             <h2>source</h2>
 
             <ul>
-                <li>Current release: <a href="http://mitmproxy.org/download/pathod-0.9.2.tar.gz">pathod 0.9.2</a></li>
+                <li>Current release: <a href="http://mitmproxy.org/download/pathod-{{version}}.tar.gz">pathod {{version}}</a></li>
 
                 <li>GitHub: <a href="http://github.com/mitmproxy/pathod">github.com/cortesi/pathod</a></li>
             </li>