fixed Ingres constr typo, thanks Chris Clark

VERSION

@@ -1 +1 @@
-Version 2.4.2-stable+timestamp.2013.03.09.09.35.34
+Version 2.4.2-stable+timestamp.2013.03.10.07.53.59

applications/examples/controllers/global.py

@@ -5,6 +5,8 @@ response.menu = [['home', False, '/%s/default/index'
                  '/%s/global/vars' % request.application]]
 
 def get(args):
+    if args[0].startswith('__'):
+        return None
     try:
         obj = globals(),get(args[0])
         for k in range(1,len(args)):        

gluon/dal.py

@@ -3920,7 +3920,7 @@ class IngresAdapter(BaseAdapter):
         self.db_codec = db_codec
         self._after_connection = after_connection
         self.find_or_make_work_folder()
-        connstr = self._uri.split(':', 1)[1]
+        connstr = uri.split(':', 1)[1]
         # Simple URI processing
         connstr = connstr.lstrip()
         while connstr.startswith('/'):