Add a dist folder and update appcast for 2.3

Sparkle appcast/pleasant3D.xml

@@ -5,6 +5,33 @@
       <link>http://ckab.com/appcasts/pleasant3D.xml</link>
       <description>Pleasant3D's most recent changes with links to updates.</description>
       <language>en</language>
+          <item>
+            <title>Version 2.3</title>
+            <description xml:lang="en"><![CDATA[
+              <ul>
+                <li>Added Slic3r and Cura Support (beta)</li>
+                <li>Refactored Gcode parsing for double extrusion</li>
+                <li>Bugfixes and improvements</li>
+              </ul>
+            ]]>
+            </description>
+            <description xml:lang="fr"><![CDATA[
+              <ul>
+                <li>Ajout du support de Cura (beta) et Slic3r</li>
+                <li>Nouvel algorithme de visualisation du gcode, amélioré pour la double extrusion</li>
+                <li>Amélioration et corrections de bug</li>
+              </ul>
+            ]]>
+            </description>
+            <pubDate>Wed, 01 Aug 2013 13:00:11 +0000</pubDate>
+            <enclosure url="http://ckab.com/releases/Pleasant3D_2.3.zip" 
+                       sparkle:version="2"
+                       sparkle:shortVersionString="2.3"
+                       length="5162324"
+                       type="application/octet-stream"
+                       sparkle:dsaSignature="MC0CFALupngnx+P9hGimLubE3Ed52WokAhUAr2AgTTFkfQImpTXEROKK7fUoOLY=" />
+         </item>
+
          <item>
             <title>Version 2.2</title>
             <description xml:lang="en"><![CDATA[