title: Cordova's distro files (jar) are not generated
body: <p>I'm trying to start a simple Cordova 3.0.0 project under Windows. Development environment (including Java, Eclipse, Ant, Android SDK) does exist and has been already used for numerous native apps.</p>
  
  <p>I was able to create a "hello" project using:</p>
  
  <pre><code>&gt;create hellocordova com.example.hellocordova "HelloWorldCordova"
  Creating new android project...
  Building jar and js files...
  Copying template files...
  Copying js, jar &amp; config.xml files...
  Creating appinfo.jar...
  Copying cordova command tools...
  Updating AndroidManifest.xml and Main Activity...
  </code></pre>
  
  <p>It worked ok, though there are no distro files in the project.</p>
  
  <p>After that I've tried to build Cordova's distro files using <code>update</code>:</p>
  
  <pre><code>&gt;update hellocordova
  Microsoft (R) Windows Script Host Version 5.7
  Copyright (C) Microsoft Corporation. All rights reserved.
  
  Building jar and js files...
  Copying js, jar &amp; config.xml files...
  Copying cordova command tools...
  </code></pre>
  
  <p>It does not show any errors, but the files <code>cordova-3.0.0.jar</code> and <code>cordova-3.0.0.js</code> are missing in respective folders (<code>libs</code> and <code>assets/www</code>) where they should appear.</p>
  
  <p>The problem could possibly be related to API Level (though I'm not sure how). <code>check_reqs</code> reports:</p>
  
  <pre><code>Please install Android target 17 (the Android 4.2 SDK).
  </code></pre>
  
  <p>Yes, I have 4.1 as the highest API level at the moment and would like to keep it so. But I don't see in Cordova scripts any indication that the level must be exactly 17, except for the <code>check_reqs</code> itself, which seems not involved in building process.</p>
  
  <p>I'd appreciate suggestions how to fix this.</p>