update URL to github pages

aboutdialog.ui

@@ -7,10 +7,10 @@
     <property name="type_hint">dialog</property>
     <property name="program_name">slowrx</property>
     <property name="version">0.01 alpha</property>
-    <property name="copyright" translatable="yes">2007–2011 windytan OH2-250</property>
+    <property name="copyright" translatable="yes">2007–2013 windytan OH2-250</property>
     <property name="comments" translatable="yes">A shortwave listener's tool for decoding SSTV images.</property>
-    <property name="website">https://github.com/windytan/slowrx</property>
-    <property name="website_label" translatable="yes">GitHub repository</property>
+    <property name="website">https://windytan.github.com/slowrx/</property>
+    <property name="website_label" translatable="yes">GitHub page</property>
     <property name="license" translatable="yes">Permission to use, copy, modify, and/or distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
 copyright notice and this permission notice appear in all copies.

slowrx.ui

@@ -864,6 +864,7 @@
                                 <property name="valign">start</property>
                                 <property name="orientation">vertical</property>
                                 <property name="action">select-folder</property>
+                                <property name="preview_widget_active">False</property>
                                 <property name="title" translatable="yes">Select folder</property>
                               </object>
                             </child>