swc-installation-test-2.py: List supported Ubuntu install hints

From http://software-carpentry.org/setup/ubuntu.html, in the order
that they are currently listed.  The page sections don't have the
appropriate anchor IDs yet, but it's still better to link to the
Ubuntu page than to the root setup/ page.

setup/swc-installation-test-2.py

@@ -115,6 +115,14 @@ class DependencyError (Exception):
         'Gentoo Base System': 'Gentoo',
         }
     _supported = [  # (system, package) pairs with specific instructions
+        ('Ubuntu', 'emacs'),
+        ('Ubuntu', 'xemacs'),
+        ('Ubuntu', 'setuptools'),
+        ('Ubuntu', 'nose'),
+        ('Ubuntu', 'nosetests'),
+        ('Ubuntu', 'hg'),
+        ('Ubuntu', 'EasyMercurial'),
+        ('Ubuntu', 'sqlite3'),
         ]
 
     def _get_message(self):